"-ioù" meaning in Bretón

{
  "categories": [
    {
      "kind": "other",
      "name": "BR:Sufijos",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Bretón",
      "parents": [],
      "source": "w"
    }
  ],
  "extra_sounds": {
    "pronunciación": "falta agregar"
  },
  "lang": "Bretón",
  "lang_code": "br",
  "pos": "suffix",
  "pos_title": "sufijo",
  "senses": [
    {
      "glosses": [
        "Sufijo pluralizador de sustantivos"
      ],
      "id": "es--ioù-br-suffix-1",
      "senseid": "1"
    }
  ],
  "word": "-ioù"
}

{
  "categories": [
    "BR:Sufijos",
    "Bretón"
  ],
  "extra_sounds": {
    "pronunciación": "falta agregar"
  },
  "lang": "Bretón",
  "lang_code": "br",
  "pos": "suffix",
  "pos_title": "sufijo",
  "senses": [
    {
      "glosses": [
        "Sufijo pluralizador de sustantivos"
      ],
      "senseid": "1"
    }
  ],
  "word": "-ioù"
}

{
  "called_from": "extractor/es/page/parse_section/48",
  "msg": "Unprocessed section: etymología",
  "path": [
    "-ioù"
  ],
  "section": "Bretón",
  "subsection": "etymología",
  "title": "-ioù",
  "trace": ""
}

{
  "called_from": "extractor/es/sense_data/process_sense_data_list/46",
  "msg": "Found unknown list type 'anv (\"nombre\")' in <LIST_ITEM(:*){} ' ', <TEMPLATE(['l+'], ['br'], ['anv'], ['glosa=nombre']){} >, ' + ', <ITALIC(){} '-ioù'>, ' → ', <TEMPLATE(['l+'], ['br'], ['anvioù'], ['glosa=nombres']){} >, '.\\n'>",
  "path": [
    "-ioù"
  ],
  "section": "Bretón",
  "subsection": "sufijo",
  "title": "-ioù",
  "trace": ""
}