"-o" meaning in Old Polish

{
  "descendants": [
    {
      "lang": "Polish",
      "lang_code": "pl",
      "word": "-o"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": ":inh",
        "3": "sla-pro:*-o<id:neuter>",
        "id": "adverbial",
        "tree": "1"
      },
      "expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old Polish\", \"term\" : \"-o\", \"lang\" : \"zlw-opl\" }\" data-id=\"adverbial\" data-lang=\"zlw-opl\" data-title=\"-o\" id=\"Old_Polish:_adverbial\">",
      "name": "etymon"
    },
    {
      "args": {
        "1": "",
        "2": "i",
        "3": "I"
      },
      "expansion": "I",
      "name": "yesno"
    },
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*-o",
        "4": "",
        "5": "neuter suffix",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *-o (“neuter suffix”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*-o",
        "gloss": "neuter suffix"
      },
      "expansion": "Inherited from Proto-Slavic *-o (“neuter suffix”)",
      "name": "inh+"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "-e"
      },
      "expansion": "Old Polish -e",
      "name": "ncog"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *-o (“neuter suffix”). In Proto-Slavic, indefinite neuter adjectives were used as adverbs, but because Polish neuter adjectives descend from the definite neuter, the indefinite neuter suffix was fossilized as the adverbial suffix. Compare Old Polish -e.",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "suffix"
      },
      "expansion": "-o",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Polish entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Polish entries with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Polish entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 41 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymon",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "barzy + -o → barzo",
          "type": "example"
        }
      ],
      "glosses": [
        "forms adverbs from adjectives"
      ],
      "id": "en--o-zlw-opl-suffix-7rnxXLPh",
      "related": [
        {
          "word": "-ie"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɔ/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/ɔ/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "-o"
}

{
  "categories": [
    "Pages using catfix",
    "Pages with 41 entries",
    "Pages with entries"
  ],
  "descendants": [
    {
      "lang": "Polish",
      "lang_code": "pl",
      "word": "-o"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": ":inh",
        "3": "sla-pro:*-o<id:neuter>",
        "id": "adverbial",
        "tree": "1"
      },
      "expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old Polish\", \"term\" : \"-o\", \"lang\" : \"zlw-opl\" }\" data-id=\"adverbial\" data-lang=\"zlw-opl\" data-title=\"-o\" id=\"Old_Polish:_adverbial\">",
      "name": "etymon"
    },
    {
      "args": {
        "1": "",
        "2": "i",
        "3": "I"
      },
      "expansion": "I",
      "name": "yesno"
    },
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*-o",
        "4": "",
        "5": "neuter suffix",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *-o (“neuter suffix”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*-o",
        "gloss": "neuter suffix"
      },
      "expansion": "Inherited from Proto-Slavic *-o (“neuter suffix”)",
      "name": "inh+"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "-e"
      },
      "expansion": "Old Polish -e",
      "name": "ncog"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *-o (“neuter suffix”). In Proto-Slavic, indefinite neuter adjectives were used as adverbs, but because Polish neuter adjectives descend from the definite neuter, the indefinite neuter suffix was fossilized as the adverbial suffix. Compare Old Polish -e.",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "suffix"
      },
      "expansion": "-o",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "suffix",
  "related": [
    {
      "word": "-ie"
    }
  ],
  "senses": [
    {
      "categories": [
        "Old Polish entries referencing missing etymons",
        "Old Polish entries with etymon",
        "Old Polish entries with incorrect language header",
        "Old Polish lemmas",
        "Old Polish suffixes",
        "Old Polish terms derived from Proto-Slavic",
        "Old Polish terms inherited from Proto-Slavic",
        "Old Polish terms with IPA pronunciation",
        "Pages using catfix",
        "Pages with 41 entries",
        "Pages with entries",
        "Pages with etymon"
      ],
      "examples": [
        {
          "text": "barzy + -o → barzo",
          "type": "example"
        }
      ],
      "glosses": [
        "forms adverbs from adjectives"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɔ/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/ɔ/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "-o"
}