"ĩ" meaning in Moyen français

{
  "categories": [
    {
      "kind": "other",
      "name": "Lettres en moyen français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Moyen français",
      "orig": "moyen français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Moyen français",
  "lang_code": "frm",
  "pos": "character",
  "pos_title": "Lettre",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en moyen français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "ĩpossible",
          "translation": "impossible"
        },
        {
          "text": "aĩsi",
          "translation": "ainsi"
        }
      ],
      "glosses": [
        "Dans les manuscrits, remplace in ou im."
      ],
      "id": "fr-ĩ-frm-character-DdtXjdni"
    }
  ],
  "tags": [
    "letter"
  ],
  "word": "ĩ"
}

{
  "categories": [
    "Lettres en moyen français",
    "moyen français"
  ],
  "lang": "Moyen français",
  "lang_code": "frm",
  "pos": "character",
  "pos_title": "Lettre",
  "senses": [
    {
      "categories": [
        "Exemples en moyen français"
      ],
      "examples": [
        {
          "text": "ĩpossible",
          "translation": "impossible"
        },
        {
          "text": "aĩsi",
          "translation": "ainsi"
        }
      ],
      "glosses": [
        "Dans les manuscrits, remplace in ou im."
      ]
    }
  ],
  "tags": [
    "letter"
  ],
  "word": "ĩ"
}