"-ga" meaning in Estonian

{
  "etymology_templates": [
    {
      "args": {
        "1": "fi",
        "2": "kanssa"
      },
      "expansion": "Finnish kanssa",
      "name": "cog"
    },
    {
      "args": {
        "1": "fi",
        "2": "kaa",
        "3": "-kaa"
      },
      "expansion": "Finnish -kaa",
      "name": "cog"
    },
    {
      "args": {
        "1": "et",
        "2": "gem-pro",
        "3": "*hansō"
      },
      "expansion": "Proto-Germanic *hansō",
      "name": "der"
    }
  ],
  "etymology_text": "Derived from kaasas, kaasa, which became a suffix. Cognate to Finnish kanssa, Finnish -kaa, ultimately from Proto-Germanic *hansō.",
  "head_templates": [
    {
      "args": {
        "1": "et",
        "2": "suffix",
        "cat2": "inflectional suffixes"
      },
      "expansion": "-ga",
      "name": "head"
    }
  ],
  "lang": "Estonian",
  "lang_code": "et",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Estonian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 10 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "ending of the comitative case"
      ],
      "id": "en--ga-et-suffix-unjza62p",
      "links": [
        [
          "comitative",
          "comitative#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ga"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fi",
        "2": "kanssa"
      },
      "expansion": "Finnish kanssa",
      "name": "cog"
    },
    {
      "args": {
        "1": "fi",
        "2": "kaa",
        "3": "-kaa"
      },
      "expansion": "Finnish -kaa",
      "name": "cog"
    },
    {
      "args": {
        "1": "et",
        "2": "gem-pro",
        "3": "*hansō"
      },
      "expansion": "Proto-Germanic *hansō",
      "name": "der"
    }
  ],
  "etymology_text": "Derived from kaasas, kaasa, which became a suffix. Cognate to Finnish kanssa, Finnish -kaa, ultimately from Proto-Germanic *hansō.",
  "head_templates": [
    {
      "args": {
        "1": "et",
        "2": "suffix",
        "cat2": "inflectional suffixes"
      },
      "expansion": "-ga",
      "name": "head"
    }
  ],
  "lang": "Estonian",
  "lang_code": "et",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Estonian entries with incorrect language header",
        "Estonian inflectional suffixes",
        "Estonian lemmas",
        "Estonian suffixes",
        "Estonian terms derived from Proto-Germanic",
        "Pages with 10 entries",
        "Pages with entries"
      ],
      "glosses": [
        "ending of the comitative case"
      ],
      "links": [
        [
          "comitative",
          "comitative#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ga"
}