"χθονίας" meaning in Ancient Greek

{
  "forms": [
    {
      "form": "χθονῐ́ᾱς",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "khthoníās",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "grc",
        "2": "adjective form",
        "head": "χθονῐ́ᾱς"
      },
      "expansion": "χθονῐ́ᾱς • (khthoníās)",
      "name": "head"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "49 51",
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "khthónios",
          "word": "χθόνιος"
        }
      ],
      "glosses": [
        "feminine accusative plural of χθόνιος (khthónios)"
      ],
      "id": "en-χθονίας-grc-adj-8dsF62Fe",
      "links": [
        [
          "χθόνιος",
          "χθόνιος#Ancient_Greek"
        ]
      ],
      "tags": [
        "accusative",
        "feminine",
        "form-of",
        "plural"
      ]
    },
    {
      "categories": [
        {
          "_dis": "49 51",
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "36 64",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "khthónios",
          "word": "χθόνιος"
        }
      ],
      "glosses": [
        "feminine genitive singular of χθόνιος (khthónios)"
      ],
      "id": "en-χθονίας-grc-adj-k1R9AKqn",
      "links": [
        [
          "χθόνιος",
          "χθόνιος#Ancient_Greek"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "genitive",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kʰtʰo.ní.aːs/"
    },
    {
      "ipa": "/xθoˈni.as/"
    },
    {
      "ipa": "/xθoˈni.as/"
    },
    {
      "ipa": "/kʰtʰo.ní.aːs/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/kʰtʰoˈni.as/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/xθoˈni.as/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/xθoˈni.as/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/xθoˈni.as/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "χθονίας"
}

{
  "categories": [
    "Ancient Greek 3-syllable words",
    "Ancient Greek adjective forms",
    "Ancient Greek entries with incorrect language header",
    "Ancient Greek non-lemma forms",
    "Ancient Greek terms with IPA pronunciation",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "χθονῐ́ᾱς",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "khthoníās",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "grc",
        "2": "adjective form",
        "head": "χθονῐ́ᾱς"
      },
      "expansion": "χθονῐ́ᾱς • (khthoníās)",
      "name": "head"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adj",
  "senses": [
    {
      "form_of": [
        {
          "extra": "khthónios",
          "word": "χθόνιος"
        }
      ],
      "glosses": [
        "feminine accusative plural of χθόνιος (khthónios)"
      ],
      "links": [
        [
          "χθόνιος",
          "χθόνιος#Ancient_Greek"
        ]
      ],
      "tags": [
        "accusative",
        "feminine",
        "form-of",
        "plural"
      ]
    },
    {
      "form_of": [
        {
          "extra": "khthónios",
          "word": "χθόνιος"
        }
      ],
      "glosses": [
        "feminine genitive singular of χθόνιος (khthónios)"
      ],
      "links": [
        [
          "χθόνιος",
          "χθόνιος#Ancient_Greek"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "genitive",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kʰtʰo.ní.aːs/"
    },
    {
      "ipa": "/xθoˈni.as/"
    },
    {
      "ipa": "/xθoˈni.as/"
    },
    {
      "ipa": "/kʰtʰo.ní.aːs/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/kʰtʰoˈni.as/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/xθoˈni.as/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/xθoˈni.as/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/xθoˈni.as/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "χθονίας"
}