"Jac y Rhew" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "Jac",
        "3": "y",
        "4": "rhew",
        "t1": "Jack",
        "t2": "(of) the",
        "t3": "ice, frost"
      },
      "expansion": "Jac (“Jack”) + y (“(of) the”) + rhew (“ice, frost”)",
      "name": "compound"
    }
  ],
  "etymology_text": "From Jac (“Jack”) + y (“(of) the”) + rhew (“ice, frost”).",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "head": "Jac y Rhew"
      },
      "expansion": "Jac y Rhew m (not mutable)",
      "name": "cy-proper noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Personifications",
          "orig": "cy:Personifications",
          "parents": [
            "Narratology",
            "Drama",
            "Literature",
            "Theater",
            "Culture",
            "Entertainment",
            "Writing",
            "Art",
            "Society",
            "Human behaviour",
            "Language",
            "All topics",
            "Human",
            "Communication",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Winter",
          "orig": "cy:Winter",
          "parents": [
            "Seasons",
            "Nature",
            "Periodic occurrences",
            "All topics",
            "Time",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Jack Frost"
      ],
      "id": "en-Jac_y_Rhew-cy-name-i0LTN~YU",
      "links": [
        [
          "Jack Frost",
          "Jack Frost"
        ]
      ],
      "related": [
        {
          "english": "\"John the Rain\"",
          "word": "Ifan y Glaw"
        },
        {
          "english": "\"Morris the Wind\"",
          "word": "Morus y Gwynt"
        }
      ],
      "synonyms": [
        {
          "word": "Siôn Barrug"
        }
      ],
      "tags": [
        "masculine",
        "not-mutable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌjak ə ˈr̥eːu̯/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˌjak ə ˈr̥ɛu̯/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "word": "Jac y Rhew"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "Jac",
        "3": "y",
        "4": "rhew",
        "t1": "Jack",
        "t2": "(of) the",
        "t3": "ice, frost"
      },
      "expansion": "Jac (“Jack”) + y (“(of) the”) + rhew (“ice, frost”)",
      "name": "compound"
    }
  ],
  "etymology_text": "From Jac (“Jack”) + y (“(of) the”) + rhew (“ice, frost”).",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "head": "Jac y Rhew"
      },
      "expansion": "Jac y Rhew m (not mutable)",
      "name": "cy-proper noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "name",
  "related": [
    {
      "english": "\"John the Rain\"",
      "word": "Ifan y Glaw"
    },
    {
      "english": "\"Morris the Wind\"",
      "word": "Morus y Gwynt"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Welsh compound terms",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh multiword terms",
        "Welsh non-mutable terms",
        "Welsh proper nouns",
        "Welsh terms spelled with J",
        "cy:Personifications",
        "cy:Winter"
      ],
      "glosses": [
        "Jack Frost"
      ],
      "links": [
        [
          "Jack Frost",
          "Jack Frost"
        ]
      ],
      "synonyms": [
        {
          "word": "Siôn Barrug"
        }
      ],
      "tags": [
        "masculine",
        "not-mutable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌjak ə ˈr̥eːu̯/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˌjak ə ˈr̥ɛu̯/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "word": "Jac y Rhew"
}