"-ί" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Suffixes en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "ἐκεινοσί"
    },
    {
      "word": "ἐνθαδί"
    },
    {
      "word": "νυνί"
    },
    {
      "word": "ὁδί"
    },
    {
      "word": "τουτί"
    },
    {
      "word": "ταδί"
    },
    {
      "word": "τοσονδί"
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "suffix",
  "pos_title": "Suffixe",
  "raw_tags": [
    "-ί, -í"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en grec ancien",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Suffixe à caractère intensif accolé aux pronoms ou aux adverbes pour les renforcer."
      ],
      "id": "fr--ί-grc-suffix-yi471IuT",
      "raw_tags": [
        "Grec attique"
      ]
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "-ί"
}

{
  "categories": [
    "Suffixes en grec ancien",
    "grec ancien"
  ],
  "derived": [
    {
      "word": "ἐκεινοσί"
    },
    {
      "word": "ἐνθαδί"
    },
    {
      "word": "νυνί"
    },
    {
      "word": "ὁδί"
    },
    {
      "word": "τουτί"
    },
    {
      "word": "ταδί"
    },
    {
      "word": "τοσονδί"
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "suffix",
  "pos_title": "Suffixe",
  "raw_tags": [
    "-ί, -í"
  ],
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en grec ancien"
      ],
      "glosses": [
        "Suffixe à caractère intensif accolé aux pronoms ou aux adverbes pour les renforcer."
      ],
      "raw_tags": [
        "Grec attique"
      ]
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "-ί"
}