"nGréigis" meaning in Irish

{
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "mutated proper noun"
      },
      "expansion": "nGréigis",
      "name": "head"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Gréigis"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Eclipsed form of Gréigis."
      ],
      "id": "en-nGréigis-ga-name-b3to3RTv",
      "links": [
        [
          "Gréigis",
          "Gréigis#Irish"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "eclipsis"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɲɾʲeːɟɪʃ/"
    }
  ],
  "word": "nGréigis"
}

{
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "mutated proper noun"
      },
      "expansion": "nGréigis",
      "name": "head"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Gréigis"
        }
      ],
      "categories": [
        "Irish eclipsed forms",
        "Irish entries with incorrect language header",
        "Irish mutated proper nouns",
        "Irish non-lemma forms",
        "Irish terms with IPA pronunciation"
      ],
      "glosses": [
        "Eclipsed form of Gréigis."
      ],
      "links": [
        [
          "Gréigis",
          "Gréigis#Irish"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "eclipsis"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɲɾʲeːɟɪʃ/"
    }
  ],
  "word": "nGréigis"
}