"skul" meaning in Old Swedish

{
  "head_templates": [
    {
      "args": {
        "1": "gmq-osw",
        "2": "verb form",
        "head": "skul"
      },
      "expansion": "skul",
      "name": "head"
    }
  ],
  "lang": "Old Swedish",
  "lang_code": "gmq-osw",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Swedish 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"
        }
      ],
      "form_of": [
        {
          "word": "skula"
        }
      ],
      "glosses": [
        "second-person present imperative of skula"
      ],
      "id": "en-skul-gmq-osw-verb-uAIIjRAK",
      "links": [
        [
          "skula",
          "skula#Old_Swedish"
        ]
      ],
      "tags": [
        "form-of",
        "imperative",
        "present",
        "second-person"
      ]
    }
  ],
  "word": "skul"
}

{
  "categories": [
    "Pages with 11 entries",
    "Pages with entries",
    "Tok Pisin entries with incorrect language header",
    "Tok Pisin lemmas",
    "Tok Pisin nouns",
    "Tok Pisin terms derived from Ancient Greek",
    "Tok Pisin terms derived from English",
    "Tok Pisin terms derived from Late Latin",
    "Tok Pisin terms derived from Middle English",
    "Tok Pisin terms derived from Old English",
    "Tok Pisin terms derived from Proto-West Germanic",
    "Tok Pisin terms inherited from English",
    "Tok Pisin terms inherited from Middle English",
    "Tok Pisin terms inherited from Old English",
    "Tok Pisin terms inherited from Proto-West Germanic",
    "Tok Pisin verbs",
    "tpi:Schools"
  ],
  "head_templates": [
    {
      "args": {
        "1": "gmq-osw",
        "2": "verb form",
        "head": "skul"
      },
      "expansion": "skul",
      "name": "head"
    }
  ],
  "lang": "Old Swedish",
  "lang_code": "gmq-osw",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Old Swedish entries with incorrect language header",
        "Old Swedish non-lemma forms",
        "Old Swedish terms with redundant head parameter",
        "Old Swedish verb forms",
        "Pages with 11 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "skula"
        }
      ],
      "glosses": [
        "second-person present imperative of skula"
      ],
      "links": [
        [
          "skula",
          "skula#Old_Swedish"
        ]
      ],
      "tags": [
        "form-of",
        "imperative",
        "present",
        "second-person"
      ]
    }
  ],
  "word": "skul"
}