"oso" meaning in Norwegian Nynorsk

{
  "head_templates": [
    {
      "args": {
        "1": "nn",
        "2": "verb form"
      },
      "expansion": "oso",
      "name": "head"
    }
  ],
  "lang": "Norwegian Nynorsk",
  "lang_code": "nn",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Norwegian Nynorsk entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 22 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "asa"
        }
      ],
      "glosses": [
        "past plural of asa"
      ],
      "id": "en-oso-nn-verb-A2FIqSFq",
      "links": [
        [
          "asa",
          "asa#Norwegian_Nynorsk"
        ]
      ],
      "raw_glosses": [
        "(obsolete) past plural of asa"
      ],
      "tags": [
        "form-of",
        "obsolete",
        "past",
        "plural"
      ]
    }
  ],
  "word": "oso"
}

{
  "categories": [
    "Pages with 22 entries",
    "Pages with entries",
    "West Makian entries with incorrect language header",
    "West Makian lemmas",
    "West Makian nouns",
    "West Makian palindromes",
    "West Makian terms in nonstandard scripts",
    "mqs:Plants"
  ],
  "head_templates": [
    {
      "args": {
        "1": "nn",
        "2": "verb form"
      },
      "expansion": "oso",
      "name": "head"
    }
  ],
  "lang": "Norwegian Nynorsk",
  "lang_code": "nn",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Norwegian Nynorsk entries with incorrect language header",
        "Norwegian Nynorsk non-lemma forms",
        "Norwegian Nynorsk obsolete verb forms",
        "Norwegian Nynorsk palindromes",
        "Norwegian Nynorsk terms with obsolete senses",
        "Norwegian Nynorsk verb forms",
        "Pages with 22 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "asa"
        }
      ],
      "glosses": [
        "past plural of asa"
      ],
      "links": [
        [
          "asa",
          "asa#Norwegian_Nynorsk"
        ]
      ],
      "raw_glosses": [
        "(obsolete) past plural of asa"
      ],
      "tags": [
        "form-of",
        "obsolete",
        "past",
        "plural"
      ]
    }
  ],
  "word": "oso"
}