"-où" meaning in Breton

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "cel-bry-pro",
        "3": "*-ow"
      },
      "expansion": "Proto-Brythonic *-ow",
      "name": "inh"
    },
    {
      "args": {
        "1": "br",
        "2": "cel-pro",
        "3": "*-owes"
      },
      "expansion": "Proto-Celtic *-owes",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "-au"
      },
      "expansion": "Welsh -au",
      "name": "cog"
    },
    {
      "args": {
        "1": "kw",
        "2": "-ow"
      },
      "expansion": "Cornish -ow",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Brythonic *-ow, from Proto-Celtic *-owes. Cognate with Welsh -au, Cornish -ow.",
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "suffix",
        "cat2": "plural suffixes"
      },
      "expansion": "-où",
      "name": "head"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Breton entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "mamm (“mother”) + -où → mammoù (“mothers”)",
          "type": "example"
        },
        {
          "text": "tad (“father”) + -où → tadoù (“fathers”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Noun pluralization suffix"
      ],
      "id": "en--où-br-suffix-70eFYO1N",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-où"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "cel-bry-pro",
        "3": "*-ow"
      },
      "expansion": "Proto-Brythonic *-ow",
      "name": "inh"
    },
    {
      "args": {
        "1": "br",
        "2": "cel-pro",
        "3": "*-owes"
      },
      "expansion": "Proto-Celtic *-owes",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "-au"
      },
      "expansion": "Welsh -au",
      "name": "cog"
    },
    {
      "args": {
        "1": "kw",
        "2": "-ow"
      },
      "expansion": "Cornish -ow",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Brythonic *-ow, from Proto-Celtic *-owes. Cognate with Welsh -au, Cornish -ow.",
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "suffix",
        "cat2": "plural suffixes"
      },
      "expansion": "-où",
      "name": "head"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Breton entries with incorrect language header",
        "Breton lemmas",
        "Breton plural suffixes",
        "Breton suffixes",
        "Breton terms derived from Proto-Brythonic",
        "Breton terms derived from Proto-Celtic",
        "Breton terms inherited from Proto-Brythonic",
        "Breton terms inherited from Proto-Celtic"
      ],
      "examples": [
        {
          "text": "mamm (“mother”) + -où → mammoù (“mothers”)",
          "type": "example"
        },
        {
          "text": "tad (“father”) + -où → tadoù (“fathers”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Noun pluralization suffix"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-où"
}