"-is" meaning in Esperanto

{
  "etymology_text": "The Esperanto suffixes -as, -is, -os, -us are related, and appear to have been inspired by previous language projects:\n: This play of vowels is not an original idea of Zamenhof's: -as, -is, -os are found for the three tenses of the infinitive in Faiguet's system of 1765; -a, -i, -o without a consonant are used like Z's -as, -is, -os by Rudelle (1858); Courtonne in 1885 had -am, -im, -om in the same values, and the similarity with Esperanto is here even more perfect than in the other projects, as -um corresponds to Z's -us. —An International Language (1928)\nThe vowel of -is is likely cognate with the Latin perfect, as in amavit \"s/he had loved\", and the corresponding past infinitive amavisse.",
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "suffix",
        "cat2": "inflectional suffixes"
      },
      "expansion": "-is",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto 1894 Universala Vortaro",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto BRO1",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto endings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Words approved by the Akademio de Esperanto",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "ending of past tense in verbs, e.g. ami to love, ŝi amis she loved."
      ],
      "head_nr": 1,
      "id": "en--is-eo-suffix-SEa15rRj",
      "links": [
        [
          "ami",
          "ami"
        ],
        [
          "ŝi",
          "ŝi"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-is"
}

{
  "categories": [
    "Pages with raw sortkeys"
  ],
  "etymology_text": "The Esperanto suffixes -as, -is, -os, -us are related, and appear to have been inspired by previous language projects:\n: This play of vowels is not an original idea of Zamenhof's: -as, -is, -os are found for the three tenses of the infinitive in Faiguet's system of 1765; -a, -i, -o without a consonant are used like Z's -as, -is, -os by Rudelle (1858); Courtonne in 1885 had -am, -im, -om in the same values, and the similarity with Esperanto is here even more perfect than in the other projects, as -um corresponds to Z's -us. —An International Language (1928)\nThe vowel of -is is likely cognate with the Latin perfect, as in amavit \"s/he had loved\", and the corresponding past infinitive amavisse.",
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "suffix",
        "cat2": "inflectional suffixes"
      },
      "expansion": "-is",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Esperanto 1894 Universala Vortaro",
        "Esperanto BRO1",
        "Esperanto endings",
        "Esperanto entries with incorrect language header",
        "Esperanto entries with language name categories using raw markup",
        "Esperanto inflectional suffixes",
        "Esperanto lemmas",
        "Esperanto suffixes",
        "Esperanto terms with non-redundant non-automated sortkeys",
        "Pages with raw sortkeys",
        "Words approved by the Akademio de Esperanto"
      ],
      "glosses": [
        "ending of past tense in verbs, e.g. ami to love, ŝi amis she loved."
      ],
      "head_nr": 1,
      "links": [
        [
          "ami",
          "ami"
        ],
        [
          "ŝi",
          "ŝi"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-is"
}

{
  "called_from": "page/1713/20221215",
  "msg": "later head without list of senses,template node #, -is/Esperanto",
  "path": [
    "-is"
  ],
  "section": "Esperanto",
  "subsection": "suffix",
  "title": "-is",
  "trace": ""
}