"Blwyddyn Newydd Dda" meaning in Gallois

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Interjections en gallois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gallois",
      "orig": "gallois",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de blwyddyn, newydd et da."
  ],
  "lang": "Gallois",
  "lang_code": "cy",
  "pos": "intj",
  "pos_title": "Interjection",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en gallois",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Bonne année."
      ],
      "id": "fr-Blwyddyn_Newydd_Dda-cy-intj-bL7Lonvd"
    }
  ],
  "word": "Blwyddyn Newydd Dda"
}

{
  "categories": [
    "Compositions en anglais",
    "Interjections en gallois",
    "gallois"
  ],
  "etymology_texts": [
    "Composé de blwyddyn, newydd et da."
  ],
  "lang": "Gallois",
  "lang_code": "cy",
  "pos": "intj",
  "pos_title": "Interjection",
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en gallois"
      ],
      "glosses": [
        "Bonne année."
      ]
    }
  ],
  "word": "Blwyddyn Newydd Dda"
}