"-sel" meaning in Danish

{
  "etymology_templates": [
    {
      "args": {
        "1": "da",
        "2": "non",
        "3": "-sl"
      },
      "expansion": "Old Norse -sl",
      "name": "der"
    },
    {
      "args": {
        "1": "da",
        "2": "ang",
        "3": "-ls"
      },
      "expansion": "Old English -ls",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Norse -sl, -sla, Old English -ls, -els. Related to -else. See “-sel” in Den Danske Ordbog.",
  "head_templates": [
    {
      "args": {
        "1": "da",
        "2": "suffix",
        "head": ""
      },
      "expansion": "-sel",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "-sel",
      "name": "da-suffix"
    }
  ],
  "lang": "Danish",
  "lang_code": "da",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Danish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 11 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Forms nouns from verbs with the sense of \"the act of verbing\", or a sense otherwise related to the act of verbing."
      ],
      "id": "en--sel-da-suffix-NZflBO9Z",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-sel"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "da",
        "2": "non",
        "3": "-sl"
      },
      "expansion": "Old Norse -sl",
      "name": "der"
    },
    {
      "args": {
        "1": "da",
        "2": "ang",
        "3": "-ls"
      },
      "expansion": "Old English -ls",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Norse -sl, -sla, Old English -ls, -els. Related to -else. See “-sel” in Den Danske Ordbog.",
  "head_templates": [
    {
      "args": {
        "1": "da",
        "2": "suffix",
        "head": ""
      },
      "expansion": "-sel",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "-sel",
      "name": "da-suffix"
    }
  ],
  "lang": "Danish",
  "lang_code": "da",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Danish entries with incorrect language header",
        "Danish lemmas",
        "Danish suffixes",
        "Danish terms derived from Old English",
        "Danish terms derived from Old Norse",
        "Pages with 11 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Forms nouns from verbs with the sense of \"the act of verbing\", or a sense otherwise related to the act of verbing."
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-sel"
}