"riðils" meaning in Icelandic

{
  "etymology_templates": [
    {
      "args": {},
      "expansion": "See the etymology of the corresponding lemma form.",
      "name": "nonlemma"
    }
  ],
  "etymology_text": "See the etymology of the corresponding lemma form.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "noun form"
      },
      "expansion": "riðils",
      "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": "riðill"
        }
      ],
      "glosses": [
        "indefinite genitive singular of riðill"
      ],
      "id": "en-riðils-is-noun-Gp8PwDNY",
      "links": [
        [
          "riðill",
          "riðill#Icelandic"
        ]
      ],
      "tags": [
        "form-of",
        "genitive",
        "indefinite",
        "singular"
      ]
    }
  ],
  "word": "riðils"
}

{
  "etymology_templates": [
    {
      "args": {},
      "expansion": "See the etymology of the corresponding lemma form.",
      "name": "nonlemma"
    }
  ],
  "etymology_text": "See the etymology of the corresponding lemma form.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "noun form"
      },
      "expansion": "riðils",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Icelandic entries with incorrect language header",
        "Icelandic non-lemma forms",
        "Icelandic noun forms"
      ],
      "form_of": [
        {
          "word": "riðill"
        }
      ],
      "glosses": [
        "indefinite genitive singular of riðill"
      ],
      "links": [
        [
          "riðill",
          "riðill#Icelandic"
        ]
      ],
      "tags": [
        "form-of",
        "genitive",
        "indefinite",
        "singular"
      ]
    }
  ],
  "word": "riðils"
}