"couldnae" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "could",
        "3": "nae"
      },
      "expansion": "could + nae",
      "name": "compound"
    }
  ],
  "etymology_text": "could + nae",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "contraction",
        "head": ""
      },
      "expansion": "couldnae",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "couldnae",
      "name": "en-cont"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "word": "could not"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Scottish English",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Contraction of could not."
      ],
      "id": "en-couldnae-en-contraction--W95KlSY",
      "links": [
        [
          "could",
          "could#English"
        ],
        [
          "not",
          "not#English"
        ]
      ],
      "raw_glosses": [
        "(Scotland) Contraction of could not."
      ],
      "tags": [
        "Scotland",
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "word": "couldnae"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "could",
        "3": "nae"
      },
      "expansion": "could + nae",
      "name": "compound"
    }
  ],
  "etymology_text": "could + nae",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "contraction",
        "head": ""
      },
      "expansion": "couldnae",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "couldnae",
      "name": "en-cont"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "word": "could not"
        }
      ],
      "categories": [
        "English compound terms",
        "English contractions",
        "English entries with incorrect language header",
        "English non-lemma forms",
        "Pages with 1 entry",
        "Pages with entries",
        "Scottish English"
      ],
      "glosses": [
        "Contraction of could not."
      ],
      "links": [
        [
          "could",
          "could#English"
        ],
        [
          "not",
          "not#English"
        ]
      ],
      "raw_glosses": [
        "(Scotland) Contraction of could not."
      ],
      "tags": [
        "Scotland",
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "word": "couldnae"
}