"-ítí" meaning in Irish

{
  "etymology_templates": [
    {
      "args": {
        "1": "ga",
        "2": "-igh",
        "3": "tí"
      },
      "expansion": "-igh + -tí",
      "name": "suffix"
    }
  ],
  "etymology_text": "From -igh + -tí.",
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "suffix",
        "cat2": "inflectional suffixes",
        "cat3": "",
        "g": "",
        "g2": ""
      },
      "expansion": "-ítí",
      "name": "head"
    },
    {
      "args": {
        "1": "i"
      },
      "expansion": "-ítí",
      "name": "ga-suffix"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish terms suffixed with -tí",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Autonomous ending of second conjugation verbs in the past habitual tense and past subjunctive mood"
      ],
      "id": "en--ítí-ga-suffix-YRm8ZwaZ",
      "synonyms": [
        {
          "english": "broad form",
          "word": "-aítí"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/iːtʲiː/"
    }
  ],
  "word": "-ítí"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ga",
        "2": "-igh",
        "3": "tí"
      },
      "expansion": "-igh + -tí",
      "name": "suffix"
    }
  ],
  "etymology_text": "From -igh + -tí.",
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "suffix",
        "cat2": "inflectional suffixes",
        "cat3": "",
        "g": "",
        "g2": ""
      },
      "expansion": "-ítí",
      "name": "head"
    },
    {
      "args": {
        "1": "i"
      },
      "expansion": "-ítí",
      "name": "ga-suffix"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Irish entries with incorrect language header",
        "Irish inflectional suffixes",
        "Irish lemmas",
        "Irish suffixes",
        "Irish terms suffixed with -tí",
        "Irish terms with IPA pronunciation"
      ],
      "glosses": [
        "Autonomous ending of second conjugation verbs in the past habitual tense and past subjunctive mood"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/iːtʲiː/"
    }
  ],
  "synonyms": [
    {
      "english": "broad form",
      "word": "-aítí"
    }
  ],
  "word": "-ítí"
}