"herenat" 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 heren, avec le suffixe -at de l’exclamatif."
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Adjectifs exclamatifs en breton",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Exclamatif de heren."
      ],
      "id": "fr-herenat-br-adj-Qu9FxM7H"
    }
  ],
  "sounds": [
    {
      "ipa": "\\he.ˈrɛnː.at\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "herenat"
}

{
  "categories": [
    "Formes d’adjectifs en breton",
    "breton"
  ],
  "etymology_texts": [
    "De heren, avec le suffixe -at de l’exclamatif."
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        "Adjectifs exclamatifs en breton"
      ],
      "glosses": [
        "Exclamatif de heren."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\he.ˈrɛnː.at\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "herenat"
}