"Fjǫrgyn" meaning in Old Norse

{
  "etymology_text": "Proper noun from fjǫrgyn (“land, earth”). Compare Jǫrð (“Jord, Earth”) and jǫrð (“earth”).",
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "proper noun"
      },
      "expansion": "Fjǫrgyn",
      "name": "head"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Norse entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "non",
          "name": "Norse deities",
          "orig": "non:Norse deities",
          "parents": [
            "Germanic deities",
            "Gods",
            "Norse mythology",
            "Germanic mythology",
            "Religion",
            "Mythology",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "non",
          "name": "Norse mythology",
          "orig": "non:Norse mythology",
          "parents": [
            "Germanic mythology",
            "Mythology",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Jǫrð (“Earth”), the mother of Thor in Norse mythology."
      ],
      "id": "en-Fjǫrgyn-non-name--4pp1YgB",
      "links": [
        [
          "Jǫrð",
          "Jǫrð#Old_Norse"
        ],
        [
          "Thor",
          "Thor"
        ]
      ]
    }
  ],
  "word": "Fjǫrgyn"
}

{
  "etymology_text": "Proper noun from fjǫrgyn (“land, earth”). Compare Jǫrð (“Jord, Earth”) and jǫrð (“earth”).",
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "proper noun"
      },
      "expansion": "Fjǫrgyn",
      "name": "head"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Old Norse entries with incorrect language header",
        "Old Norse lemmas",
        "Old Norse proper nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "non:Norse deities",
        "non:Norse mythology"
      ],
      "glosses": [
        "Jǫrð (“Earth”), the mother of Thor in Norse mythology."
      ],
      "links": [
        [
          "Jǫrð",
          "Jǫrð#Old_Norse"
        ],
        [
          "Thor",
          "Thor"
        ]
      ]
    }
  ],
  "word": "Fjǫrgyn"
}