"svartalfar" meaning in Old Norse

{
  "etymology_templates": [
    {
      "args": {
        "1": "non",
        "2": "svartr",
        "3": "alfar",
        "t1": "black",
        "t2": "elves"
      },
      "expansion": "svartr (“black”) + alfar (“elves”)",
      "name": "compound"
    }
  ],
  "etymology_text": "svartr (“black”) + alfar (“elves”) (note that svartr refers to black objects and black hair, but not black skin; for black skin, blár is used)",
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "proper nouns",
        "g": "m-p",
        "g2": "",
        "head": "",
        "tr": ""
      },
      "expansion": "svartalfar m pl",
      "name": "head"
    },
    {
      "args": {
        "1": "m-p"
      },
      "expansion": "svartalfar m pl",
      "name": "non-proper noun"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Norse entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Norse pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "non",
          "name": "Elves",
          "orig": "non:Elves",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "non",
          "name": "Norse mythology",
          "orig": "non:Norse mythology",
          "parents": [
            "Germanic mythology",
            "Mythology",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the “black elves”"
      ],
      "id": "en-svartalfar-non-name--rIgwePz",
      "links": [
        [
          "Norse",
          "Norse"
        ],
        [
          "mythology",
          "mythology"
        ]
      ],
      "raw_glosses": [
        "(Norse mythology) the “black elves”"
      ],
      "related": [
        {
          "english": "elves",
          "word": "alfar"
        },
        {
          "word": "Svartalfaheim"
        },
        {
          "english": "dark elves",
          "word": "dǫkkalfar"
        },
        {
          "english": "light elves",
          "word": "ljósalfar"
        }
      ],
      "tags": [
        "Norse",
        "masculine",
        "plural"
      ],
      "topics": [
        "human-sciences",
        "mysticism",
        "mythology",
        "philosophy",
        "sciences"
      ]
    }
  ],
  "word": "svartalfar"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "non",
        "2": "svartr",
        "3": "alfar",
        "t1": "black",
        "t2": "elves"
      },
      "expansion": "svartr (“black”) + alfar (“elves”)",
      "name": "compound"
    }
  ],
  "etymology_text": "svartr (“black”) + alfar (“elves”) (note that svartr refers to black objects and black hair, but not black skin; for black skin, blár is used)",
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "proper nouns",
        "g": "m-p",
        "g2": "",
        "head": "",
        "tr": ""
      },
      "expansion": "svartalfar m pl",
      "name": "head"
    },
    {
      "args": {
        "1": "m-p"
      },
      "expansion": "svartalfar m pl",
      "name": "non-proper noun"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "name",
  "related": [
    {
      "english": "elves",
      "word": "alfar"
    },
    {
      "word": "Svartalfaheim"
    },
    {
      "english": "dark elves",
      "word": "dǫkkalfar"
    },
    {
      "english": "light elves",
      "word": "ljósalfar"
    }
  ],
  "senses": [
    {
      "categories": [
        "Old Norse compound terms",
        "Old Norse entries with incorrect language header",
        "Old Norse lemmas",
        "Old Norse masculine nouns",
        "Old Norse pluralia tantum",
        "Old Norse proper nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "non:Elves",
        "non:Norse mythology"
      ],
      "glosses": [
        "the “black elves”"
      ],
      "links": [
        [
          "Norse",
          "Norse"
        ],
        [
          "mythology",
          "mythology"
        ]
      ],
      "raw_glosses": [
        "(Norse mythology) the “black elves”"
      ],
      "tags": [
        "Norse",
        "masculine",
        "plural"
      ],
      "topics": [
        "human-sciences",
        "mysticism",
        "mythology",
        "philosophy",
        "sciences"
      ]
    }
  ],
  "word": "svartalfar"
}