"μητέρας" meaning in 古希臘語

{
  "categories": [
    {
      "kind": "other",
      "name": "古希臘語名詞變格形",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古希臘語非詞元形式",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "mētéras",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "古希臘語",
  "lang_code": "grc",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "μήτηρ"
        }
      ],
      "glosses": [
        "μήτηρ (mḗtēr) 的賓格複數"
      ],
      "id": "zh-μητέρας-grc-noun-Mb3fD4ZS",
      "tags": [
        "form-of"
      ]
    }
  ],
  "word": "μητέρας"
}

{
  "categories": [
    "古希臘語名詞變格形",
    "古希臘語非詞元形式",
    "有1個詞條的頁面"
  ],
  "forms": [
    {
      "form": "mētéras",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "古希臘語",
  "lang_code": "grc",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "μήτηρ"
        }
      ],
      "glosses": [
        "μήτηρ (mḗtēr) 的賓格複數"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "word": "μητέρας"
}