"-ijenn" meaning in Breton

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "xbm",
        "3": "-ien"
      },
      "expansion": "Middle Breton -ien",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle Breton -ien.",
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "suffix"
      },
      "expansion": "-ijenn",
      "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 with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "start + -ijenn = startijenn"
        },
        {
          "text": "teñval (“dark”) + -ijenn = teñvalijenn (“darkness”)"
        }
      ],
      "glosses": [
        "-ity, -ness"
      ],
      "id": "en--ijenn-br-suffix-ich6nb8H",
      "links": [
        [
          "-ity",
          "-ity"
        ],
        [
          "-ness",
          "-ness"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈiːʒɛn/"
    }
  ],
  "word": "-ijenn"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "xbm",
        "3": "-ien"
      },
      "expansion": "Middle Breton -ien",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle Breton -ien.",
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "suffix"
      },
      "expansion": "-ijenn",
      "name": "head"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Breton entries with incorrect language header",
        "Breton lemmas",
        "Breton suffixes",
        "Breton terms derived from Middle Breton",
        "Breton terms inherited from Middle Breton",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "start + -ijenn = startijenn"
        },
        {
          "text": "teñval (“dark”) + -ijenn = teñvalijenn (“darkness”)"
        }
      ],
      "glosses": [
        "-ity, -ness"
      ],
      "links": [
        [
          "-ity",
          "-ity"
        ],
        [
          "-ness",
          "-ness"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈiːʒɛn/"
    }
  ],
  "word": "-ijenn"
}