"περιοδικῷ" meaning in 古希臘語

{
  "categories": [
    {
      "kind": "other",
      "name": "古希臘語形容詞變格形",
      "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"
    },
    {
      "kind": "other",
      "name": "通用希臘語",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "periodikôi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "古希臘語",
  "lang_code": "grc",
  "pos": "adj",
  "raw_tags": [
    "通用"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "詞元形式為紅鏈的屈折",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "περῐοδῐκός"
        }
      ],
      "glosses": [
        "περῐοδῐκός (periodikós) 的陽性/中性與格單數"
      ],
      "id": "zh-περιοδικῷ-grc-adj-f0LZpKiX",
      "tags": [
        "form-of"
      ]
    }
  ],
  "word": "περιοδικῷ"
}

{
  "categories": [
    "古希臘語形容詞變格形",
    "古希臘語非詞元形式",
    "有1個詞條的頁面",
    "通用希臘語"
  ],
  "forms": [
    {
      "form": "periodikôi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "古希臘語",
  "lang_code": "grc",
  "pos": "adj",
  "raw_tags": [
    "通用"
  ],
  "senses": [
    {
      "categories": [
        "詞元形式為紅鏈的屈折"
      ],
      "form_of": [
        {
          "word": "περῐοδῐκός"
        }
      ],
      "glosses": [
        "περῐοδῐκός (periodikós) 的陽性/中性與格單數"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "word": "περιοδικῷ"
}