"cʼhalvas" 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": "galvas",
      "tags": [
        "unmutated"
      ]
    },
    {
      "form": "kalvas",
      "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, Gaovan hag an Den Gwer, eil emb. Levrioù Skol al Louarn (An Here), 1988, page 49",
          "text": "Gaovan neuze a cʼhalvas e vevel, a savas hag en em wiskas, hag a yeas dʼe verenn.",
          "translation": "Gauvain appela alors son valet, se leva et s’habilla, et alla déjeuner."
        }
      ],
      "form_of": [
        {
          "word": "galvas"
        }
      ],
      "glosses": [
        "Forme mutée de galvas par adoucissement (g > cʼh)."
      ],
      "id": "fr-cʼhalvas-br-verb-yKqHZKBX"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈɣalvas\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "cʼhalvas"
}

{
  "categories": [
    "Formes de verbes en breton",
    "breton"
  ],
  "forms": [
    {
      "form": "galvas",
      "tags": [
        "unmutated"
      ]
    },
    {
      "form": "kalvas",
      "tags": [
        "mutation-hard"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        "Exemples en breton"
      ],
      "examples": [
        {
          "ref": "Roparz Hemon, Gaovan hag an Den Gwer, eil emb. Levrioù Skol al Louarn (An Here), 1988, page 49",
          "text": "Gaovan neuze a cʼhalvas e vevel, a savas hag en em wiskas, hag a yeas dʼe verenn.",
          "translation": "Gauvain appela alors son valet, se leva et s’habilla, et alla déjeuner."
        }
      ],
      "form_of": [
        {
          "word": "galvas"
        }
      ],
      "glosses": [
        "Forme mutée de galvas par adoucissement (g > cʼh)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈɣalvas\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "cʼhalvas"
}