"knífr" meaning in Oudnoords

{
  "categories": [
    {
      "kind": "other",
      "name": "Woorden in het Oudnoords",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Woorden in het Oudnoords van lengte 5",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Zelfstandig naamwoord in het Oudnoords",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Afkomstig uit het Protogermaans"
  ],
  "hyphenation": "knífr",
  "lang": "Oudnoords",
  "lang_code": "unknown",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Gereedschap_in_het_Oudnoords",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Huishouden_in_het_Oudnoords",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "mes"
      ],
      "id": "nl-knífr-unknown-noun-8TCCQesC",
      "raw_tags": [
        "huishouden"
      ],
      "topics": [
        "tools"
      ]
    }
  ],
  "word": "knífr"
}

{
  "categories": [
    "Woorden in het Oudnoords",
    "Woorden in het Oudnoords van lengte 5",
    "Zelfstandig naamwoord in het Oudnoords"
  ],
  "etymology_texts": [
    "Afkomstig uit het Protogermaans"
  ],
  "hyphenation": "knífr",
  "lang": "Oudnoords",
  "lang_code": "unknown",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "categories": [
        "Gereedschap_in_het_Oudnoords",
        "Huishouden_in_het_Oudnoords"
      ],
      "glosses": [
        "mes"
      ],
      "raw_tags": [
        "huishouden"
      ],
      "topics": [
        "tools"
      ]
    }
  ],
  "word": "knífr"
}