"vagañ" 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": "magañ",
      "tags": [
        "infinitive",
        "unmutated"
      ]
    }
  ],
  "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": "Jules Gros, Le trésor du breton parlé - Deuxième partie - Dictionnaire breton-français des expressions figurées, 1ère ed. 1970, p. 335",
          "text": "Ma mamm-me a oa bet o vaga e Pariz.",
          "translation": "Ma mère (à moi) avait été comme nourrice (nourrir) à Paris."
        }
      ],
      "form_of": [
        {
          "word": "magañ"
        }
      ],
      "glosses": [
        "Forme mutée de magañ par adoucissement (m > v)."
      ],
      "id": "fr-vagañ-br-verb-THnz9UUq"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈvɑːɡã\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "vagañ"
}

{
  "categories": [
    "Formes de verbes en breton",
    "breton"
  ],
  "forms": [
    {
      "form": "magañ",
      "tags": [
        "infinitive",
        "unmutated"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        "Exemples en breton"
      ],
      "examples": [
        {
          "ref": "Jules Gros, Le trésor du breton parlé - Deuxième partie - Dictionnaire breton-français des expressions figurées, 1ère ed. 1970, p. 335",
          "text": "Ma mamm-me a oa bet o vaga e Pariz.",
          "translation": "Ma mère (à moi) avait été comme nourrice (nourrir) à Paris."
        }
      ],
      "form_of": [
        {
          "word": "magañ"
        }
      ],
      "glosses": [
        "Forme mutée de magañ par adoucissement (m > v)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈvɑːɡã\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "vagañ"
}