"-ey" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Suffixes en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "suffix",
  "pos_title": "Suffixe",
  "senses": [
    {
      "alt_of": [
        {
          "word": "-y"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en français",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Variante de -y, suffixe toponymique relativement propre à l’est de la France."
      ],
      "id": "fr--ey-fr-suffix-kAUV0Nuf",
      "tags": [
        "alt-of"
      ]
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "-ey"
}

{
  "categories": [
    "Suffixes en français",
    "français"
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "suffix",
  "pos_title": "Suffixe",
  "senses": [
    {
      "alt_of": [
        {
          "word": "-y"
        }
      ],
      "categories": [
        "Wiktionnaire:Exemples manquants en français"
      ],
      "glosses": [
        "Variante de -y, suffixe toponymique relativement propre à l’est de la France."
      ],
      "tags": [
        "alt-of"
      ]
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "-ey"
}