"-ατα" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de suffixes en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "-ata"
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "suffix",
  "pos_title": "Forme de suffixe",
  "raw_tags": [
    "-ατα, -ata",
    "(souvent neutre)"
  ],
  "senses": [
    {
      "form_of": [
        {
          "word": "Suffixe"
        }
      ],
      "glosses": [
        "Suffixe qui forme le pluriel de certains mots avec la terminaison α."
      ],
      "id": "fr--ατα-grc-suffix--3Wx~xIu"
    }
  ],
  "sounds": [
    {
      "ipa": "*\\a.ta\\"
    }
  ],
  "tags": [
    "form-of",
    "morpheme"
  ],
  "word": "-ατα"
}

{
  "categories": [
    "Formes de suffixes en grec ancien",
    "grec ancien"
  ],
  "derived": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "-ata"
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "suffix",
  "pos_title": "Forme de suffixe",
  "raw_tags": [
    "-ατα, -ata",
    "(souvent neutre)"
  ],
  "senses": [
    {
      "form_of": [
        {
          "word": "Suffixe"
        }
      ],
      "glosses": [
        "Suffixe qui forme le pluriel de certains mots avec la terminaison α."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "*\\a.ta\\"
    }
  ],
  "tags": [
    "form-of",
    "morpheme"
  ],
  "word": "-ατα"
}