"-iser" meaning in French

{
  "descendants": [
    {
      "lang": "Swedish",
      "lang_code": "sv",
      "raw_tags": [
        "borrowed"
      ],
      "word": "-isera"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grc",
        "3": "grk-pro",
        "4": "ine-pro"
      },
      "expansion": "",
      "name": "dercat"
    },
    {
      "args": {
        "1": "fr",
        "2": "fro",
        "3": "-iser"
      },
      "expansion": "Old French -iser",
      "name": "inh"
    },
    {
      "args": {
        "1": "fr",
        "2": "la-lat",
        "3": "-izo",
        "4": "-izāre"
      },
      "expansion": "Late Latin -izāre",
      "name": "der"
    },
    {
      "args": {
        "1": "fr",
        "2": "-oyer"
      },
      "expansion": "Doublet of -oyer",
      "name": "doublet"
    }
  ],
  "etymology_text": "From Old French -iser, borrowed from Late Latin -izāre. Doublet of -oyer, which was inherited.",
  "head_templates": [
    {
      "args": {},
      "expansion": "-iser (verb-forming suffix)",
      "name": "fr-verb"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "-ise/-ize"
      ],
      "id": "en--iser-fr-suffix-ypWeQcQ9",
      "links": [
        [
          "-ise",
          "-ise"
        ],
        [
          "-ize",
          "-ize"
        ]
      ],
      "related": [
        {
          "word": "-oyer"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/i.ze/"
    },
    {
      "audio": "LL-Q150 (fra)-Lyokoï--iser.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav.ogg"
    }
  ],
  "word": "-iser"
}

{
  "descendants": [
    {
      "lang": "Swedish",
      "lang_code": "sv",
      "raw_tags": [
        "borrowed"
      ],
      "word": "-isera"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grc",
        "3": "grk-pro",
        "4": "ine-pro"
      },
      "expansion": "",
      "name": "dercat"
    },
    {
      "args": {
        "1": "fr",
        "2": "fro",
        "3": "-iser"
      },
      "expansion": "Old French -iser",
      "name": "inh"
    },
    {
      "args": {
        "1": "fr",
        "2": "la-lat",
        "3": "-izo",
        "4": "-izāre"
      },
      "expansion": "Late Latin -izāre",
      "name": "der"
    },
    {
      "args": {
        "1": "fr",
        "2": "-oyer"
      },
      "expansion": "Doublet of -oyer",
      "name": "doublet"
    }
  ],
  "etymology_text": "From Old French -iser, borrowed from Late Latin -izāre. Doublet of -oyer, which was inherited.",
  "head_templates": [
    {
      "args": {},
      "expansion": "-iser (verb-forming suffix)",
      "name": "fr-verb"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "suffix",
  "related": [
    {
      "word": "-oyer"
    }
  ],
  "senses": [
    {
      "categories": [
        "French 2-syllable words",
        "French doublets",
        "French entries with incorrect language header",
        "French lemmas",
        "French suffixes",
        "French terms derived from Ancient Greek",
        "French terms derived from Late Latin",
        "French terms derived from Old French",
        "French terms derived from Proto-Hellenic",
        "French terms derived from Proto-Indo-European",
        "French terms inherited from Old French",
        "French terms with IPA pronunciation",
        "French verb-forming suffixes",
        "Pages using catfix",
        "Pages with 4 entries",
        "Pages with entries"
      ],
      "glosses": [
        "-ise/-ize"
      ],
      "links": [
        [
          "-ise",
          "-ise"
        ],
        [
          "-ize",
          "-ize"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/i.ze/"
    },
    {
      "audio": "LL-Q150 (fra)-Lyokoï--iser.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav/LL-Q150_%28fra%29-Lyoko%C3%AF--iser.wav.ogg"
    }
  ],
  "word": "-iser"
}

{
  "called_from": "form_descriptions/1698",
  "msg": "unrecognized head form: verb-forming suffix",
  "path": [
    "-iser"
  ],
  "section": "French",
  "subsection": "suffix",
  "title": "-iser",
  "trace": ""
}