"welen" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de verbes en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "gwelen",
      "tags": [
        "unmutated"
      ]
    },
    {
      "form": "kwelen",
      "tags": [
        "mutation-hard"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en breton",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Roparz Hemon, Tangi Kerviler, Al Liamm, 1971, page 32",
          "text": "Daoust na welen nemet he c’hein, ez anavezis raktal merc’h ar medisin.",
          "translation": "Bien que je ne voyais que son dos, je reconnus immédiatement la fille du docteur."
        }
      ],
      "form_of": [
        {
          "word": "gwelen"
        }
      ],
      "glosses": [
        "Forme mutée de gwelen par adoucissement (gw > w)."
      ],
      "id": "fr-welen-br-verb-yT6d03oE"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈɥeːlɛn\\"
    },
    {
      "ipa": "\\ˈweːlɛn\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "welen"
}

{
  "categories": [
    "Formes de verbes en breton",
    "breton"
  ],
  "forms": [
    {
      "form": "gwelen",
      "tags": [
        "unmutated"
      ]
    },
    {
      "form": "kwelen",
      "tags": [
        "mutation-hard"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        "Exemples en breton"
      ],
      "examples": [
        {
          "ref": "Roparz Hemon, Tangi Kerviler, Al Liamm, 1971, page 32",
          "text": "Daoust na welen nemet he c’hein, ez anavezis raktal merc’h ar medisin.",
          "translation": "Bien que je ne voyais que son dos, je reconnus immédiatement la fille du docteur."
        }
      ],
      "form_of": [
        {
          "word": "gwelen"
        }
      ],
      "glosses": [
        "Forme mutée de gwelen par adoucissement (gw > w)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈɥeːlɛn\\"
    },
    {
      "ipa": "\\ˈweːlɛn\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "welen"
}