"-a" meaning in Old Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": ":inh",
        "3": "sla-pro:*-a<id:feminine suffix>",
        "id": "feminine nouns",
        "text": "+",
        "tree": "+"
      },
      "expansion": "Etymology tree\nProto-Indo-European *-h₂\nProto-Indo-European *-éh₂\nProto-Balto-Slavic *-āˀ\nProto-Slavic *-a\nOld Polish -a\nInherited from Proto-Slavic *-a.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *-h₂\nProto-Indo-European *-éh₂\nProto-Balto-Slavic *-āˀ\nProto-Slavic *-a\nOld Polish -a\nInherited from Proto-Slavic *-a.",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "suffix",
        "g": "f"
      },
      "expansion": "-a f",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "forms feminine nouns"
      ],
      "id": "en--a-zlw-opl-suffix-B1W2ZJGR",
      "tags": [
        "feminine",
        "morpheme"
      ]
    },
    {
      "glosses": [
        "forms feminine names from masculine names"
      ],
      "id": "en--a-zlw-opl-suffix-CAg94lsg",
      "tags": [
        "feminine",
        "morpheme"
      ]
    },
    {
      "categories": [
        {
          "_dis": "16 24 60",
          "kind": "other",
          "name": "Old Polish entries with etymology texts",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "16 24 60",
          "kind": "other",
          "name": "Old Polish entries with etymology trees",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 23 62",
          "kind": "other",
          "name": "Old Polish entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "8 6 11 7 6 11 22 24 5",
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "rad + -a → rada",
          "type": "example"
        }
      ],
      "glosses": [
        "forms feminine nominative and vocative forms of short forms of adjectives"
      ],
      "id": "en--a-zlw-opl-suffix-ohU4J0Mp",
      "tags": [
        "feminine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a(ː)/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/a/",
      "note": "15ᵗʰ CE"
    },
    {
      "ipa": "/ɒ/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "-a"
}

{
  "categories": [
    "Old Polish entries with etymology texts",
    "Old Polish entries with etymology trees",
    "Old Polish entries with incorrect language header",
    "Old Polish feminine suffixes",
    "Old Polish lemmas",
    "Old Polish suffixes",
    "Old Polish terms derived from Proto-Balto-Slavic",
    "Old Polish terms derived from Proto-Indo-European",
    "Old Polish terms derived from Proto-Slavic",
    "Old Polish terms inherited from Proto-Balto-Slavic",
    "Old Polish terms inherited from Proto-Indo-European",
    "Old Polish terms inherited from Proto-Slavic",
    "Old Polish terms with IPA pronunciation",
    "Pages using catfix",
    "Pages with 66 entries",
    "Pages with entries",
    "Pages with etymology trees"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": ":inh",
        "3": "sla-pro:*-a<id:feminine suffix>",
        "id": "feminine nouns",
        "text": "+",
        "tree": "+"
      },
      "expansion": "Etymology tree\nProto-Indo-European *-h₂\nProto-Indo-European *-éh₂\nProto-Balto-Slavic *-āˀ\nProto-Slavic *-a\nOld Polish -a\nInherited from Proto-Slavic *-a.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *-h₂\nProto-Indo-European *-éh₂\nProto-Balto-Slavic *-āˀ\nProto-Slavic *-a\nOld Polish -a\nInherited from Proto-Slavic *-a.",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "suffix",
        "g": "f"
      },
      "expansion": "-a f",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "forms feminine nouns"
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    },
    {
      "glosses": [
        "forms feminine names from masculine names"
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "text": "rad + -a → rada",
          "type": "example"
        }
      ],
      "glosses": [
        "forms feminine nominative and vocative forms of short forms of adjectives"
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a(ː)/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/a/",
      "note": "15ᵗʰ CE"
    },
    {
      "ipa": "/ɒ/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "-a"
}