"zigore" 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": "digore",
      "tags": [
        "unmutated"
      ]
    },
    {
      "form": "tigore",
      "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": [
        {
          "bold_text_offsets": [
            [
              52,
              58
            ]
          ],
          "ref": "Roparz Hemon, Nenn Jani, Éditions Al Liamm, 1974, page 96",
          "text": "Peurliesañ ez errue Herri re abred, rak ar burev ne zigore nemet da eizh eur.",
          "translation": "La plupart du temps Henri arrivait trop tôt, car le bureau n’ouvrait qu’à huit heures."
        }
      ],
      "form_of": [
        {
          "word": "digore"
        }
      ],
      "glosses": [
        "Forme mutée de digore par adoucissement."
      ],
      "id": "fr-zigore-br-verb-h-Q53L3i"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ziˈɡɔːre\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "zigore"
}

{
  "categories": [
    "Formes de verbes en breton",
    "breton"
  ],
  "forms": [
    {
      "form": "digore",
      "tags": [
        "unmutated"
      ]
    },
    {
      "form": "tigore",
      "tags": [
        "mutation-hard"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        "Exemples en breton"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              52,
              58
            ]
          ],
          "ref": "Roparz Hemon, Nenn Jani, Éditions Al Liamm, 1974, page 96",
          "text": "Peurliesañ ez errue Herri re abred, rak ar burev ne zigore nemet da eizh eur.",
          "translation": "La plupart du temps Henri arrivait trop tôt, car le bureau n’ouvrait qu’à huit heures."
        }
      ],
      "form_of": [
        {
          "word": "digore"
        }
      ],
      "glosses": [
        "Forme mutée de digore par adoucissement."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ziˈɡɔːre\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "zigore"
}