"neden-" meaning in Danish

{
  "etymology_text": "From the adverb neden.",
  "head_templates": [
    {
      "args": {
        "1": "da",
        "2": "prefix"
      },
      "expansion": "neden-",
      "name": "head"
    }
  ],
  "lang": "Danish",
  "lang_code": "da",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Danish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with collapsible category trees for nonexistent categories",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "below-, sub-"
      ],
      "id": "en-neden--da-prefix-aubuG~9L",
      "links": [
        [
          "below",
          "below"
        ],
        [
          "sub-",
          "sub-"
        ]
      ],
      "raw_glosses": [
        "(rare) below-, sub-"
      ],
      "tags": [
        "morpheme",
        "rare"
      ]
    }
  ],
  "word": "neden-"
}

{
  "etymology_text": "From the adverb neden.",
  "head_templates": [
    {
      "args": {
        "1": "da",
        "2": "prefix"
      },
      "expansion": "neden-",
      "name": "head"
    }
  ],
  "lang": "Danish",
  "lang_code": "da",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Danish entries with incorrect language header",
        "Danish lemmas",
        "Danish prefixes",
        "Danish terms with rare senses",
        "Entries with collapsible category trees for nonexistent categories",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "below-, sub-"
      ],
      "links": [
        [
          "below",
          "below"
        ],
        [
          "sub-",
          "sub-"
        ]
      ],
      "raw_glosses": [
        "(rare) below-, sub-"
      ],
      "tags": [
        "morpheme",
        "rare"
      ]
    }
  ],
  "word": "neden-"
}