"-ien" meaning in Breton

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "obt",
        "3": "-ion"
      },
      "expansion": "Old Breton -ion",
      "name": "inh"
    },
    {
      "args": {
        "1": "br",
        "2": "cel-bry-pro",
        "3": "*-onos"
      },
      "expansion": "Proto-Brythonic *-onos",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "-ion"
      },
      "expansion": "Welsh -ion",
      "name": "cog"
    },
    {
      "args": {
        "1": "kw",
        "2": "-yon"
      },
      "expansion": "Cornish -yon",
      "name": "cog"
    }
  ],
  "etymology_text": "From Old Breton -ion, -on, Proto-Brythonic *-onos, *-onā. Cognate to Welsh -ion, Cornish -yon.",
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "suffix",
        "cat2": "plural suffixes"
      },
      "expansion": "-ien",
      "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"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 6 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "lenner (“reader”) + -ien → lennerien (“readers”)",
          "type": "example"
        },
        {
          "text": "mab (“son”) + -ien → mibien (“sons”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Noun pluralization suffix; sometimes with vocalic ablaut in the pluralized noun"
      ],
      "id": "en--ien-br-suffix-hjcUKsNZ",
      "links": [
        [
          "ablaut",
          "ablaut#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ien"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "obt",
        "3": "-ion"
      },
      "expansion": "Old Breton -ion",
      "name": "inh"
    },
    {
      "args": {
        "1": "br",
        "2": "cel-bry-pro",
        "3": "*-onos"
      },
      "expansion": "Proto-Brythonic *-onos",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "-ion"
      },
      "expansion": "Welsh -ion",
      "name": "cog"
    },
    {
      "args": {
        "1": "kw",
        "2": "-yon"
      },
      "expansion": "Cornish -yon",
      "name": "cog"
    }
  ],
  "etymology_text": "From Old Breton -ion, -on, Proto-Brythonic *-onos, *-onā. Cognate to Welsh -ion, Cornish -yon.",
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "suffix",
        "cat2": "plural suffixes"
      },
      "expansion": "-ien",
      "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 Old Breton",
        "Breton terms derived from Proto-Brythonic",
        "Breton terms inherited from Old Breton",
        "Breton terms inherited from Proto-Brythonic",
        "Pages using catfix",
        "Pages with 6 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "lenner (“reader”) + -ien → lennerien (“readers”)",
          "type": "example"
        },
        {
          "text": "mab (“son”) + -ien → mibien (“sons”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Noun pluralization suffix; sometimes with vocalic ablaut in the pluralized noun"
      ],
      "links": [
        [
          "ablaut",
          "ablaut#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ien"
}