"πέτρα" meaning in 古希臘語

{
  "categories": [
    {
      "kind": "other",
      "name": "一類變格的古希臘語陰性名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古希臘語一類變格名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古希臘語倒二音節重音詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古希臘語名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古希臘語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古希臘語陰性名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有2個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "派生自前希臘時期的底層語言的古希臘語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "源自前希臘時期的底層語言的古希臘語借詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "詞源不明的古希臘語詞",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "πέτρινος"
    },
    {
      "word": "pétrinos"
    }
  ],
  "descendants": [
    {
      "lang": "希臘語",
      "lang_code": "el",
      "roman": "pétra",
      "word": "πέτρα"
    },
    {
      "lang": "拉丁語",
      "lang_code": "la",
      "word": "petra"
    }
  ],
  "etymology_text": "未知。Beekes 對本詞沒有具體解釋，但認為可能借自前希臘時期的底層語言。",
  "forms": [
    {
      "form": "pétrā",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "πέτρᾱς",
      "raw_tags": [
        "屬格"
      ]
    }
  ],
  "lang": "古希臘語",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "πέτρος"
    },
    {
      "word": "pétros"
    }
  ],
  "senses": [
    {
      "glosses": [
        "岩石地貌，如懸崖、岩架、洞穴、山脊"
      ],
      "id": "zh-πέτρα-grc-noun-ZWe0gLek"
    },
    {
      "glosses": [
        "石頭（材料）"
      ],
      "id": "zh-πέτρα-grc-noun-3vMpDVO2"
    }
  ],
  "synonyms": [
    {
      "word": "πέτρη"
    },
    {
      "word": "pétrē"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "πέτρα"
}

{
  "categories": [
    "一類變格的古希臘語陰性名詞",
    "古希臘語一類變格名詞",
    "古希臘語倒二音節重音詞",
    "古希臘語名詞",
    "古希臘語詞元",
    "古希臘語陰性名詞",
    "有2個詞條的頁面",
    "有詞條的頁面",
    "派生自前希臘時期的底層語言的古希臘語詞",
    "源自前希臘時期的底層語言的古希臘語借詞",
    "詞源不明的古希臘語詞"
  ],
  "derived": [
    {
      "word": "πέτρινος"
    },
    {
      "word": "pétrinos"
    }
  ],
  "descendants": [
    {
      "lang": "希臘語",
      "lang_code": "el",
      "roman": "pétra",
      "word": "πέτρα"
    },
    {
      "lang": "拉丁語",
      "lang_code": "la",
      "word": "petra"
    }
  ],
  "etymology_text": "未知。Beekes 對本詞沒有具體解釋，但認為可能借自前希臘時期的底層語言。",
  "forms": [
    {
      "form": "pétrā",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "πέτρᾱς",
      "raw_tags": [
        "屬格"
      ]
    }
  ],
  "lang": "古希臘語",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "πέτρος"
    },
    {
      "word": "pétros"
    }
  ],
  "senses": [
    {
      "glosses": [
        "岩石地貌，如懸崖、岩架、洞穴、山脊"
      ]
    },
    {
      "glosses": [
        "石頭（材料）"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "πέτρη"
    },
    {
      "word": "pétrē"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "πέτρα"
}