"hreysa" meaning in Icelandic

{
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "noun form",
        "g": "n"
      },
      "expansion": "hreysa n",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "hreysi"
        }
      ],
      "glosses": [
        "genitive plural of hreysi"
      ],
      "id": "en-hreysa-is-noun-EhzZ92Yf",
      "links": [
        [
          "hreysi",
          "hreysi#Icelandic"
        ]
      ],
      "tags": [
        "form-of",
        "genitive",
        "neuter",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈr̥eiːsa/"
    },
    {
      "rhymes": "-eiːsa"
    }
  ],
  "word": "hreysa"
}

{
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "noun form",
        "g": "n"
      },
      "expansion": "hreysa n",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Icelandic 2-syllable words",
        "Icelandic entries with incorrect language header",
        "Icelandic non-lemma forms",
        "Icelandic noun forms",
        "Icelandic terms with IPA pronunciation",
        "Rhymes:Icelandic/eiːsa",
        "Rhymes:Icelandic/eiːsa/2 syllables"
      ],
      "form_of": [
        {
          "word": "hreysi"
        }
      ],
      "glosses": [
        "genitive plural of hreysi"
      ],
      "links": [
        [
          "hreysi",
          "hreysi#Icelandic"
        ]
      ],
      "tags": [
        "form-of",
        "genitive",
        "neuter",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈr̥eiːsa/"
    },
    {
      "rhymes": "-eiːsa"
    }
  ],
  "word": "hreysa"
}