".i." meaning in Irish

{
  "etymology_text": "Originally an abbreviation of Latin id est used in medieval manuscripts.",
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "adverb"
      },
      "expansion": ".i.",
      "name": "head"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "adv",
  "senses": [
    {
      "alt_of": [
        {
          "word": "eadhon"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 5 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of eadhon."
      ],
      "id": "en-.i.-ga-adv-RQKO3A05",
      "links": [
        [
          "eadhon",
          "eadhon#Irish"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "word": ".i."
}

{
  "etymology_text": "Originally an abbreviation of Latin id est used in medieval manuscripts.",
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "adverb"
      },
      "expansion": ".i.",
      "name": "head"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "adv",
  "senses": [
    {
      "alt_of": [
        {
          "word": "eadhon"
        }
      ],
      "categories": [
        "Irish abbreviations",
        "Irish adverbs",
        "Irish entries with incorrect language header",
        "Irish lemmas",
        "Irish terms spelled with .",
        "Pages with 5 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Abbreviation of eadhon."
      ],
      "links": [
        [
          "eadhon",
          "eadhon#Irish"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "word": ".i."
}