"gu suthain sìorraidh" meaning in Scottish Gaelic

{
  "head_templates": [
    {
      "args": {
        "1": "gd",
        "2": "adverbs"
      },
      "expansion": "gu suthain sìorraidh",
      "name": "head"
    }
  ],
  "lang": "Scottish Gaelic",
  "lang_code": "gd",
  "pos": "adv",
  "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": "Time",
          "orig": "gd:Time",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "forevermore"
      ],
      "id": "en-gu_suthain_sìorraidh-gd-adv-m0~nS22V",
      "links": [
        [
          "forevermore",
          "forevermore"
        ]
      ],
      "related": [
        {
          "word": "gu sìorraidh"
        },
        {
          "word": "gu suthain"
        },
        {
          "word": "gu bràth"
        },
        {
          "word": "a-chaoidh"
        }
      ]
    }
  ],
  "word": "gu suthain sìorraidh"
}

{
  "head_templates": [
    {
      "args": {
        "1": "gd",
        "2": "adverbs"
      },
      "expansion": "gu suthain sìorraidh",
      "name": "head"
    }
  ],
  "lang": "Scottish Gaelic",
  "lang_code": "gd",
  "pos": "adv",
  "related": [
    {
      "word": "gu sìorraidh"
    },
    {
      "word": "gu suthain"
    },
    {
      "word": "gu bràth"
    },
    {
      "word": "a-chaoidh"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Scottish Gaelic adverbs",
        "Scottish Gaelic entries with incorrect language header",
        "Scottish Gaelic lemmas",
        "Scottish Gaelic multiword terms",
        "gd:Time"
      ],
      "glosses": [
        "forevermore"
      ],
      "links": [
        [
          "forevermore",
          "forevermore"
        ]
      ]
    }
  ],
  "word": "gu suthain sìorraidh"
}