"Meirionnydd" meaning in Gallois

{
  "categories": [
    {
      "kind": "other",
      "name": "Districts du Pays de Galles en gallois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Dérivations en gallois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en gallois suffixés avec -ydd",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms propres en gallois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gallois",
      "orig": "gallois",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Dérivé de Meirion, avec le suffixe -ydd."
  ],
  "forms": [
    {
      "form": "Feirionnydd",
      "raw_tags": [
        "Lénition"
      ]
    }
  ],
  "lang": "Gallois",
  "lang_code": "cy",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "glosses": [
        "Merionethshire."
      ],
      "id": "fr-Meirionnydd-cy-name-gNZtwovW"
    },
    {
      "glosses": [
        "Sir Feirionnyd."
      ],
      "id": "fr-Meirionnydd-cy-name-OPo-dXBe"
    }
  ],
  "word": "Meirionnydd"
}

{
  "categories": [
    "Districts du Pays de Galles en gallois",
    "Dérivations en gallois",
    "Mots en gallois suffixés avec -ydd",
    "Noms propres en gallois",
    "gallois"
  ],
  "etymology_texts": [
    "Dérivé de Meirion, avec le suffixe -ydd."
  ],
  "forms": [
    {
      "form": "Feirionnydd",
      "raw_tags": [
        "Lénition"
      ]
    }
  ],
  "lang": "Gallois",
  "lang_code": "cy",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "glosses": [
        "Merionethshire."
      ]
    },
    {
      "glosses": [
        "Sir Feirionnyd."
      ]
    }
  ],
  "word": "Meirionnydd"
}