"annarr hvárr" meaning in Old Norse

{
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "determiner"
      },
      "expansion": "annarr hvárr",
      "name": "head"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "det",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Norse determiners",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Norse entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "either (out of two)"
      ],
      "id": "en-annarr_hvárr-non-det-c~OePl~R"
    }
  ],
  "word": "annarr hvárr"
}

{
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "determiner"
      },
      "expansion": "annarr hvárr",
      "name": "head"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "det",
  "senses": [
    {
      "categories": [
        "Old Norse determiners",
        "Old Norse entries with incorrect language header",
        "Old Norse lemmas",
        "Old Norse multiword terms"
      ],
      "glosses": [
        "either (out of two)"
      ]
    }
  ],
  "word": "annarr hvárr"
}