"grúfa" meaning in Old Norse

{
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        "2": "*kreupaną",
        "3": "",
        "4": "to twist, creep"
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      "expansion": "Proto-Germanic *kreupaną (“to twist, creep”)",
      "name": "cog"
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  ],
  "etymology_text": "Possibly from Proto-Germanic *kreupaną (“to twist, creep”).",
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        "g": "f",
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      },
      "expansion": "grúfa f",
      "name": "head"
    },
    {
      "args": {
        "1": "f"
      },
      "expansion": "grúfa f",
      "name": "non-noun"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "49 1 49 2",
          "kind": "other",
          "name": "Old Norse entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
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      ],
      "derived": [
        {
          "english": "to lie face down, on one's belly",
          "word": "liggja á grúfu"
        }
      ],
      "glosses": [
        "used in set phrases"
      ],
      "id": "en-grúfa-non-noun-5Ld2Hu2d",
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "grúfa"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "is",
            "2": "grúfa"
          },
          "expansion": "Icelandic: grúfa",
          "name": "desc"
        }
      ],
      "text": "Icelandic: grúfa"
    }
  ],
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    {
      "args": {
        "1": "gem-pro",
        "2": "*kreupaną",
        "3": "",
        "4": "to twist, creep"
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      "name": "cog"
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  "etymology_text": "Possibly from Proto-Germanic *kreupaną (“to twist, creep”).",
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        "14": "{{{3}}}",
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        "2": "verb",
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        "4": "{{{1}}}",
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        "8": "{{{2}}}",
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        "tr": ""
      },
      "expansion": "grúfa",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "grúfa",
      "name": "non-verb"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "to grovel, to cower or crouch down"
      ],
      "id": "en-grúfa-non-verb-HCSuNcfj",
      "links": [
        [
          "grovel",
          "grovel"
        ],
        [
          "cower",
          "cower"
        ],
        [
          "crouch",
          "crouch"
        ]
      ]
    }
  ],
  "word": "grúfa"
}

{
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    "Old Norse feminine nouns",
    "Old Norse lemmas",
    "Old Norse nouns",
    "Old Norse verbs"
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  "derived": [
    {
      "english": "to lie face down, on one's belly",
      "word": "liggja á grúfu"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "gem-pro",
        "2": "*kreupaną",
        "3": "",
        "4": "to twist, creep"
      },
      "expansion": "Proto-Germanic *kreupaną (“to twist, creep”)",
      "name": "cog"
    }
  ],
  "etymology_text": "Possibly from Proto-Germanic *kreupaną (“to twist, creep”).",
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      "args": {
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        "g": "f",
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      },
      "expansion": "grúfa f",
      "name": "head"
    },
    {
      "args": {
        "1": "f"
      },
      "expansion": "grúfa f",
      "name": "non-noun"
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  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "noun",
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    {
      "glosses": [
        "used in set phrases"
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "grúfa"
}

{
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    "Old Norse feminine nouns",
    "Old Norse lemmas",
    "Old Norse nouns",
    "Old Norse verbs"
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  "descendants": [
    {
      "depth": 1,
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            "1": "is",
            "2": "grúfa"
          },
          "expansion": "Icelandic: grúfa",
          "name": "desc"
        }
      ],
      "text": "Icelandic: grúfa"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "gem-pro",
        "2": "*kreupaną",
        "3": "",
        "4": "to twist, creep"
      },
      "expansion": "Proto-Germanic *kreupaną (“to twist, creep”)",
      "name": "cog"
    }
  ],
  "etymology_text": "Possibly from Proto-Germanic *kreupaną (“to twist, creep”).",
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      },
      "expansion": "grúfa",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "grúfa",
      "name": "non-verb"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "to grovel, to cower or crouch down"
      ],
      "links": [
        [
          "grovel",
          "grovel"
        ],
        [
          "cower",
          "cower"
        ],
        [
          "crouch",
          "crouch"
        ]
      ]
    }
  ],
  "word": "grúfa"
}