"ciad-ghin" meaning in Scottish Gaelic

{
  "etymology_templates": [
    {
      "args": {
        "1": "gd",
        "2": "ciad",
        "3": "gin",
        "gloss1": "primary",
        "gloss2": ""
      },
      "expansion": "ciad (“primary”) + gin",
      "name": "compound"
    }
  ],
  "etymology_text": "From ciad (“primary”) + gin.",
  "head_templates": [
    {
      "args": {
        "1": "gd",
        "2": "noun",
        "g": "m",
        "head": "ciad-ghin"
      },
      "expansion": "ciad-ghin m",
      "name": "head"
    }
  ],
  "lang": "Scottish Gaelic",
  "lang_code": "gd",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Scottish Gaelic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "gd",
          "name": "Family",
          "orig": "gd:Family",
          "parents": [
            "People",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "firstborn child"
      ],
      "id": "en-ciad-ghin-gd-noun-Qz51sKag",
      "links": [
        [
          "firstborn",
          "firstborn"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "ciad-ghin"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "gd",
        "2": "ciad",
        "3": "gin",
        "gloss1": "primary",
        "gloss2": ""
      },
      "expansion": "ciad (“primary”) + gin",
      "name": "compound"
    }
  ],
  "etymology_text": "From ciad (“primary”) + gin.",
  "head_templates": [
    {
      "args": {
        "1": "gd",
        "2": "noun",
        "g": "m",
        "head": "ciad-ghin"
      },
      "expansion": "ciad-ghin m",
      "name": "head"
    }
  ],
  "lang": "Scottish Gaelic",
  "lang_code": "gd",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Scottish Gaelic compound terms",
        "Scottish Gaelic entries with incorrect language header",
        "Scottish Gaelic lemmas",
        "Scottish Gaelic masculine nouns",
        "Scottish Gaelic multiword terms",
        "Scottish Gaelic nouns",
        "Scottish Gaelic terms with redundant head parameter",
        "gd:Family"
      ],
      "glosses": [
        "firstborn child"
      ],
      "links": [
        [
          "firstborn",
          "firstborn"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "ciad-ghin"
}