See perfidus in All languages combined, or Wiktionary
{
"antonyms": [
{
"sense": "sense 1",
"word": "castus"
},
{
"word": "honestus"
},
{
"word": "pudīcus"
}
],
"derived": [
{
"_dis1": "0 0",
"word": "perfidē"
},
{
"_dis1": "0 0",
"word": "perfidia"
}
],
"descendants": [
{
"lang": "Catalan",
"lang_code": "ca",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "pèrfid"
},
{
"descendants": [
{
"lang": "Danish",
"lang_code": "da",
"raw_tags": [
"borrowed"
],
"word": "perfid"
},
{
"descendants": [
{
"lang": "Hungarian",
"lang_code": "hu",
"raw_tags": [
"borrowed"
],
"word": "perfid"
}
],
"lang": "German",
"lang_code": "de",
"raw_tags": [
"borrowed"
],
"word": "perfide"
},
{
"lang": "Romanian",
"lang_code": "ro",
"raw_tags": [
"borrowed"
],
"word": "perfid"
}
],
"lang": "French",
"lang_code": "fr",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "perfide"
},
{
"lang": "Italian",
"lang_code": "it",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "perfido"
},
{
"lang": "Portuguese",
"lang_code": "pt",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "pérfido"
},
{
"lang": "Spanish",
"lang_code": "es",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "pérfido"
}
],
"etymology_templates": [
{
"args": {
"1": "la",
"2": ":af",
"3": "per",
"4": "fidēs<id:faith>",
"5": "-us<id:second declension>"
},
"expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*per\", \"status\" : \"ok\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Latin\", \"term\" : \"per\", \"status\" : \"ok\", \"lang\" : \"la\" }, { \"id\" : \"faith\", \"children\" : [ ], \"status\" : \"missing\", \"lang_name\" : \"Latin\", \"term\" : \"fidēs\", \"lang\" : \"la\" }, { \"id\" : \"second declension\", \"children\" : [ ], \"status\" : \"missing\", \"lang_name\" : \"Latin\", \"term\" : \"-us\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Latin\", \"term\" : \"perfidus\", \"status\" : \"ok\", \"lang\" : \"la\" }\" data-lang=\"la\" data-title=\"perfidus\">",
"name": "ety"
},
{
"args": {
"1": "la",
"2": "per",
"3": "fidēs",
"4": "-us",
"pos3": "adjectival suffix",
"t1": "through; along",
"t2": "faith; trust"
},
"expansion": "per (“through; along”) + fidēs (“faith; trust”) + -us (adjectival suffix)",
"name": "af"
}
],
"etymology_text": "From per (“through; along”) + fidēs (“faith; trust”) + -us (adjectival suffix), based on the phrase per fidem dēcipere (“to deceive through faith”).",
"forms": [
{
"form": "perfida",
"tags": [
"feminine"
]
},
{
"form": "perfidum",
"tags": [
"neuter"
]
},
{
"form": "no-table-tags",
"source": "declension",
"tags": [
"table-tags"
]
},
{
"form": "la-adecl",
"source": "declension",
"tags": [
"inflection-template"
]
},
{
"form": "perfidus",
"source": "declension",
"tags": [
"masculine",
"nominative",
"singular"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"feminine",
"nominative",
"singular"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"neuter",
"nominative",
"singular"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"masculine",
"nominative",
"plural"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"feminine",
"nominative",
"plural"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"neuter",
"nominative",
"plural"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"masculine",
"singular"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"feminine",
"genitive",
"singular"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"neuter",
"singular"
]
},
{
"form": "perfidōrum",
"links": [
[
"perfidōrum",
"perfidorum#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"masculine",
"plural"
]
},
{
"form": "perfidārum",
"links": [
[
"perfidārum",
"perfidarum#Latin"
]
],
"source": "declension",
"tags": [
"feminine",
"genitive",
"plural"
]
},
{
"form": "perfidōrum",
"links": [
[
"perfidōrum",
"perfidorum#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"neuter",
"plural"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"dative",
"masculine",
"singular"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"dative",
"feminine",
"singular"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"dative",
"neuter",
"singular"
]
},
{
"form": "perfidīs",
"links": [
[
"perfidīs",
"perfidis#Latin"
]
],
"source": "declension",
"tags": [
"dative",
"feminine",
"masculine",
"neuter",
"plural"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"accusative",
"masculine",
"singular"
]
},
{
"form": "perfidam",
"source": "declension",
"tags": [
"accusative",
"feminine",
"singular"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"accusative",
"neuter",
"singular"
]
},
{
"form": "perfidōs",
"links": [
[
"perfidōs",
"perfidos#Latin"
]
],
"source": "declension",
"tags": [
"accusative",
"masculine",
"plural"
]
},
{
"form": "perfidās",
"links": [
[
"perfidās",
"perfidas#Latin"
]
],
"source": "declension",
"tags": [
"accusative",
"feminine",
"plural"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"accusative",
"neuter",
"plural"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"masculine",
"singular"
]
},
{
"form": "perfidā",
"links": [
[
"perfidā",
"perfida#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"feminine",
"singular"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"neuter",
"singular"
]
},
{
"form": "perfidīs",
"links": [
[
"perfidīs",
"perfidis#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"feminine",
"masculine",
"neuter",
"plural"
]
},
{
"form": "perfide",
"source": "declension",
"tags": [
"masculine",
"singular",
"vocative"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"feminine",
"singular",
"vocative"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"neuter",
"singular",
"vocative"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"masculine",
"plural",
"vocative"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"feminine",
"plural",
"vocative"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"neuter",
"plural",
"vocative"
]
}
],
"head_templates": [
{
"args": {
"1": "perfidus"
},
"expansion": "perfidus (feminine perfida, neuter perfidum); first/second-declension adjective",
"name": "la-adj"
}
],
"inflection_templates": [
{
"args": {
"1": "perfidus"
},
"name": "la-adecl"
}
],
"lang": "Latin",
"lang_code": "la",
"pos": "adj",
"related": [
{
"_dis1": "0 0",
"word": "perfidiōsē"
},
{
"_dis1": "0 0",
"word": "perfidiōsus"
}
],
"senses": [
{
"categories": [
{
"_dis": "100 0",
"kind": "other",
"name": "Latin entries with etymon",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "95 5",
"kind": "other",
"name": "Latin entries with incorrect language header",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "70 30",
"kind": "other",
"name": "Latin terms suffixed with -us",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "75 25",
"kind": "other",
"name": "Latin terms suffixed with -us (second declension)",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "92 8",
"kind": "other",
"name": "Pages using etymon with no ID",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "96 4",
"kind": "other",
"name": "Pages with 1 entry",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "97 3",
"kind": "other",
"name": "Pages with entries",
"parents": [],
"source": "w+disamb"
},
{
"_dis": "92 8",
"kind": "other",
"name": "Pages with etymon",
"parents": [],
"source": "w+disamb"
}
],
"examples": [
{
"ref": "29 BCE – 19 BCE, Vergilius, Aeneis 4.305–306",
"text": "“Dissimulāre etiam spērāstī, perfide, tantum\nposse nefās, tacitusque meā dēcēdere terrā?”\n“Had you even hoped to be able to hide so great a crime – you faithless [man]! – and to slip away from my land unnoticed?”",
"type": "quotation"
}
],
"glosses": [
"that breaks one's promise; false; faithless; dishonest; disloyal; deceitful"
],
"id": "en-perfidus-la-adj-YO~nlYUy",
"links": [
[
"break",
"break"
],
[
"promise",
"promise"
],
[
"false",
"false"
],
[
"faithless",
"faithless"
],
[
"dishonest",
"dishonest"
],
[
"disloyal",
"disloyal"
],
[
"deceitful",
"deceitful"
]
],
"tags": [
"adjective",
"declension-1",
"declension-2"
]
},
{
"glosses": [
"treacherous; unsafe; dangerous"
],
"id": "en-perfidus-la-adj-SGYBL2bX",
"links": [
[
"treacherous",
"treacherous"
],
[
"unsafe",
"unsafe"
],
[
"dangerous",
"dangerous"
]
],
"raw_glosses": [
"(by extension) treacherous; unsafe; dangerous"
],
"synonyms": [
{
"word": "īnfīdus"
}
],
"tags": [
"adjective",
"broadly",
"declension-1",
"declension-2"
]
}
],
"sounds": [
{
"ipa": "[ˈpɛr.fɪ.dʊs]",
"tags": [
"Classical-Latin"
]
},
{
"ipa": "[ˈpɛr.fi.dus]",
"note": "modern Italianate Ecclesiastical"
}
],
"word": "perfidus"
}
{
"antonyms": [
{
"sense": "sense 1",
"word": "castus"
},
{
"word": "honestus"
},
{
"word": "pudīcus"
}
],
"categories": [
"Latin 3-syllable words",
"Latin adjectives",
"Latin compound terms",
"Latin entries with etymon",
"Latin entries with incorrect language header",
"Latin first and second declension adjectives",
"Latin lemmas",
"Latin terms derived from the Proto-Indo-European root *bʰeydʰ-",
"Latin terms derived from the Proto-Indo-European root *per- (before)",
"Latin terms suffixed with -us",
"Latin terms suffixed with -us (second declension)",
"Latin terms with IPA pronunciation",
"Pages using etymon with no ID",
"Pages with 1 entry",
"Pages with entries",
"Pages with etymon"
],
"derived": [
{
"word": "perfidē"
},
{
"word": "perfidia"
}
],
"descendants": [
{
"lang": "Catalan",
"lang_code": "ca",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "pèrfid"
},
{
"descendants": [
{
"lang": "Danish",
"lang_code": "da",
"raw_tags": [
"borrowed"
],
"word": "perfid"
},
{
"descendants": [
{
"lang": "Hungarian",
"lang_code": "hu",
"raw_tags": [
"borrowed"
],
"word": "perfid"
}
],
"lang": "German",
"lang_code": "de",
"raw_tags": [
"borrowed"
],
"word": "perfide"
},
{
"lang": "Romanian",
"lang_code": "ro",
"raw_tags": [
"borrowed"
],
"word": "perfid"
}
],
"lang": "French",
"lang_code": "fr",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "perfide"
},
{
"lang": "Italian",
"lang_code": "it",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "perfido"
},
{
"lang": "Portuguese",
"lang_code": "pt",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "pérfido"
},
{
"lang": "Spanish",
"lang_code": "es",
"raw_tags": [
"learned borrowing",
"learned"
],
"word": "pérfido"
}
],
"etymology_templates": [
{
"args": {
"1": "la",
"2": ":af",
"3": "per",
"4": "fidēs<id:faith>",
"5": "-us<id:second declension>"
},
"expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*per\", \"status\" : \"ok\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Latin\", \"term\" : \"per\", \"status\" : \"ok\", \"lang\" : \"la\" }, { \"id\" : \"faith\", \"children\" : [ ], \"status\" : \"missing\", \"lang_name\" : \"Latin\", \"term\" : \"fidēs\", \"lang\" : \"la\" }, { \"id\" : \"second declension\", \"children\" : [ ], \"status\" : \"missing\", \"lang_name\" : \"Latin\", \"term\" : \"-us\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Latin\", \"term\" : \"perfidus\", \"status\" : \"ok\", \"lang\" : \"la\" }\" data-lang=\"la\" data-title=\"perfidus\">",
"name": "ety"
},
{
"args": {
"1": "la",
"2": "per",
"3": "fidēs",
"4": "-us",
"pos3": "adjectival suffix",
"t1": "through; along",
"t2": "faith; trust"
},
"expansion": "per (“through; along”) + fidēs (“faith; trust”) + -us (adjectival suffix)",
"name": "af"
}
],
"etymology_text": "From per (“through; along”) + fidēs (“faith; trust”) + -us (adjectival suffix), based on the phrase per fidem dēcipere (“to deceive through faith”).",
"forms": [
{
"form": "perfida",
"tags": [
"feminine"
]
},
{
"form": "perfidum",
"tags": [
"neuter"
]
},
{
"form": "no-table-tags",
"source": "declension",
"tags": [
"table-tags"
]
},
{
"form": "la-adecl",
"source": "declension",
"tags": [
"inflection-template"
]
},
{
"form": "perfidus",
"source": "declension",
"tags": [
"masculine",
"nominative",
"singular"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"feminine",
"nominative",
"singular"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"neuter",
"nominative",
"singular"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"masculine",
"nominative",
"plural"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"feminine",
"nominative",
"plural"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"neuter",
"nominative",
"plural"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"masculine",
"singular"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"feminine",
"genitive",
"singular"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"neuter",
"singular"
]
},
{
"form": "perfidōrum",
"links": [
[
"perfidōrum",
"perfidorum#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"masculine",
"plural"
]
},
{
"form": "perfidārum",
"links": [
[
"perfidārum",
"perfidarum#Latin"
]
],
"source": "declension",
"tags": [
"feminine",
"genitive",
"plural"
]
},
{
"form": "perfidōrum",
"links": [
[
"perfidōrum",
"perfidorum#Latin"
]
],
"source": "declension",
"tags": [
"genitive",
"neuter",
"plural"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"dative",
"masculine",
"singular"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"dative",
"feminine",
"singular"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"dative",
"neuter",
"singular"
]
},
{
"form": "perfidīs",
"links": [
[
"perfidīs",
"perfidis#Latin"
]
],
"source": "declension",
"tags": [
"dative",
"feminine",
"masculine",
"neuter",
"plural"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"accusative",
"masculine",
"singular"
]
},
{
"form": "perfidam",
"source": "declension",
"tags": [
"accusative",
"feminine",
"singular"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"accusative",
"neuter",
"singular"
]
},
{
"form": "perfidōs",
"links": [
[
"perfidōs",
"perfidos#Latin"
]
],
"source": "declension",
"tags": [
"accusative",
"masculine",
"plural"
]
},
{
"form": "perfidās",
"links": [
[
"perfidās",
"perfidas#Latin"
]
],
"source": "declension",
"tags": [
"accusative",
"feminine",
"plural"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"accusative",
"neuter",
"plural"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"masculine",
"singular"
]
},
{
"form": "perfidā",
"links": [
[
"perfidā",
"perfida#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"feminine",
"singular"
]
},
{
"form": "perfidō",
"links": [
[
"perfidō",
"perfido#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"neuter",
"singular"
]
},
{
"form": "perfidīs",
"links": [
[
"perfidīs",
"perfidis#Latin"
]
],
"source": "declension",
"tags": [
"ablative",
"feminine",
"masculine",
"neuter",
"plural"
]
},
{
"form": "perfide",
"source": "declension",
"tags": [
"masculine",
"singular",
"vocative"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"feminine",
"singular",
"vocative"
]
},
{
"form": "perfidum",
"source": "declension",
"tags": [
"neuter",
"singular",
"vocative"
]
},
{
"form": "perfidī",
"links": [
[
"perfidī",
"perfidi#Latin"
]
],
"source": "declension",
"tags": [
"masculine",
"plural",
"vocative"
]
},
{
"form": "perfidae",
"source": "declension",
"tags": [
"feminine",
"plural",
"vocative"
]
},
{
"form": "perfida",
"source": "declension",
"tags": [
"neuter",
"plural",
"vocative"
]
}
],
"head_templates": [
{
"args": {
"1": "perfidus"
},
"expansion": "perfidus (feminine perfida, neuter perfidum); first/second-declension adjective",
"name": "la-adj"
}
],
"inflection_templates": [
{
"args": {
"1": "perfidus"
},
"name": "la-adecl"
}
],
"lang": "Latin",
"lang_code": "la",
"pos": "adj",
"related": [
{
"word": "perfidiōsē"
},
{
"word": "perfidiōsus"
}
],
"senses": [
{
"categories": [
"Latin terms with quotations"
],
"examples": [
{
"ref": "29 BCE – 19 BCE, Vergilius, Aeneis 4.305–306",
"text": "“Dissimulāre etiam spērāstī, perfide, tantum\nposse nefās, tacitusque meā dēcēdere terrā?”\n“Had you even hoped to be able to hide so great a crime – you faithless [man]! – and to slip away from my land unnoticed?”",
"type": "quotation"
}
],
"glosses": [
"that breaks one's promise; false; faithless; dishonest; disloyal; deceitful"
],
"links": [
[
"break",
"break"
],
[
"promise",
"promise"
],
[
"false",
"false"
],
[
"faithless",
"faithless"
],
[
"dishonest",
"dishonest"
],
[
"disloyal",
"disloyal"
],
[
"deceitful",
"deceitful"
]
],
"tags": [
"adjective",
"declension-1",
"declension-2"
]
},
{
"glosses": [
"treacherous; unsafe; dangerous"
],
"links": [
[
"treacherous",
"treacherous"
],
[
"unsafe",
"unsafe"
],
[
"dangerous",
"dangerous"
]
],
"raw_glosses": [
"(by extension) treacherous; unsafe; dangerous"
],
"synonyms": [
{
"word": "īnfīdus"
}
],
"tags": [
"adjective",
"broadly",
"declension-1",
"declension-2"
]
}
],
"sounds": [
{
"ipa": "[ˈpɛr.fɪ.dʊs]",
"tags": [
"Classical-Latin"
]
},
{
"ipa": "[ˈpɛr.fi.dus]",
"note": "modern Italianate Ecclesiastical"
}
],
"word": "perfidus"
}
Download raw JSONL data for perfidus meaning in Latin (8.4kB)
This page is a part of the kaikki.org machine-readable Latin dictionary. This dictionary is based on structured data extracted on 2026-08-28 from the enwiktionary dump dated 2026-08-05 using wiktextract (872fc7b and 4deed51). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.
If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.