"τᾷ" meaning in Ancient Greek

{
  "forms": [
    {
      "form": "tâi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "grc",
        "2": "article form"
      },
      "expansion": "τᾷ • (tâi)",
      "name": "head"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "article",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Aeolic Greek",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Doric Greek",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "ho",
          "word": "ὁ"
        }
      ],
      "glosses": [
        "feminine dative singular of ὁ (ho)"
      ],
      "id": "en-τᾷ-grc-article-WDlY4gd4",
      "links": [
        [
          "ὁ",
          "ὁ#Ancient Greek"
        ]
      ],
      "raw_glosses": [
        "(Doric, Aeolic) feminine dative singular of ὁ (ho)"
      ],
      "related": [
        {
          "urls": [
            "https://archive.org/stream/BaillyDictionnaireGrecFrancais/Bailly_DictionnaireGrecFrancais#page/n1891/mode/1up"
          ],
          "word": "[ τᾷ] in Bailly"
        },
        {
          "urls": [
            "https://archive.org/stream/BaillyDictionnaireGrecFrancais/Bailly_DictionnaireGrecFrancais#page/n1891/mode/1up"
          ],
          "word": "Anatole (1935)"
        },
        {
          "urls": [
            "https://archive.org/stream/BaillyDictionnaireGrecFrancais/Bailly_DictionnaireGrecFrancais#page/n1891/mode/1up"
          ],
          "word": "Paris: Hachette"
        }
      ],
      "synonyms": [
        {
          "roman": "têi",
          "tags": [
            "Attic"
          ],
          "word": "τῇ"
        },
        {
          "word": "Epic"
        },
        {
          "word": "Ionic"
        }
      ],
      "tags": [
        "Aeolic",
        "Doric",
        "dative",
        "feminine",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tâːi̯/"
    },
    {
      "ipa": "/ta/"
    },
    {
      "ipa": "/ta/"
    },
    {
      "ipa": "/tâːi̯/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/ta/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/ta/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ta/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ta/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "τᾷ"
}

{
  "forms": [
    {
      "form": "tâi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "grc",
        "2": "article form"
      },
      "expansion": "τᾷ • (tâi)",
      "name": "head"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "article",
  "related": [
    {
      "urls": [
        "https://archive.org/stream/BaillyDictionnaireGrecFrancais/Bailly_DictionnaireGrecFrancais#page/n1891/mode/1up"
      ],
      "word": "[ τᾷ] in Bailly"
    },
    {
      "urls": [
        "https://archive.org/stream/BaillyDictionnaireGrecFrancais/Bailly_DictionnaireGrecFrancais#page/n1891/mode/1up"
      ],
      "word": "Anatole (1935)"
    },
    {
      "urls": [
        "https://archive.org/stream/BaillyDictionnaireGrecFrancais/Bailly_DictionnaireGrecFrancais#page/n1891/mode/1up"
      ],
      "word": "Paris: Hachette"
    }
  ],
  "senses": [
    {
      "categories": [
        "Aeolic Greek",
        "Ancient Greek 1-syllable words",
        "Ancient Greek article forms",
        "Ancient Greek entries with incorrect language header",
        "Ancient Greek non-lemma forms",
        "Ancient Greek terms with IPA pronunciation",
        "Doric Greek"
      ],
      "form_of": [
        {
          "extra": "ho",
          "word": "ὁ"
        }
      ],
      "glosses": [
        "feminine dative singular of ὁ (ho)"
      ],
      "links": [
        [
          "ὁ",
          "ὁ#Ancient Greek"
        ]
      ],
      "raw_glosses": [
        "(Doric, Aeolic) feminine dative singular of ὁ (ho)"
      ],
      "tags": [
        "Aeolic",
        "Doric",
        "dative",
        "feminine",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tâːi̯/"
    },
    {
      "ipa": "/ta/"
    },
    {
      "ipa": "/ta/"
    },
    {
      "ipa": "/tâːi̯/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/ta/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/ta/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ta/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ta/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "synonyms": [
    {
      "roman": "têi",
      "tags": [
        "Attic"
      ],
      "word": "τῇ"
    },
    {
      "word": "Epic"
    },
    {
      "word": "Ionic"
    }
  ],
  "word": "τᾷ"
}