"reishañ" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes d’adjectifs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De reizh, avec le suffixe -añ du superlatif."
  ],
  "forms": [
    {
      "form": "reizh",
      "tags": [
        "positive"
      ]
    },
    {
      "form": "reishocʼh",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "reishat",
      "raw_tags": [
        "Exclamatif"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Adjectifs superlatifs en breton",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Superlatif de reizh."
      ],
      "id": "fr-reishañ-br-adj-7lMm8Fz9"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈrɛj.sːã\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "reishañ"
}

{
  "categories": [
    "Formes d’adjectifs en breton",
    "breton"
  ],
  "etymology_texts": [
    "De reizh, avec le suffixe -añ du superlatif."
  ],
  "forms": [
    {
      "form": "reizh",
      "tags": [
        "positive"
      ]
    },
    {
      "form": "reishocʼh",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "reishat",
      "raw_tags": [
        "Exclamatif"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        "Adjectifs superlatifs en breton"
      ],
      "glosses": [
        "Superlatif de reizh."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈrɛj.sːã\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "reishañ"
}