"llythyrdy" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "llythyr",
        "3": "tŷ",
        "t1": "letter",
        "t2": "house"
      },
      "expansion": "llythyr (“letter”) + tŷ (“house”)",
      "name": "com"
    }
  ],
  "etymology_text": "llythyr (“letter”) + tŷ (“house”)",
  "forms": [
    {
      "form": "llythyrtai",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "llythyrdy",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "lythyrdy",
      "source": "mutation",
      "tags": [
        "soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "llythyrtai"
      },
      "expansion": "llythyrdy m (plural llythyrtai)",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "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": "Buildings",
          "orig": "cy:Buildings",
          "parents": [
            "Buildings and structures",
            "Architecture",
            "Applied sciences",
            "Art",
            "Sciences",
            "Culture",
            "All topics",
            "Society",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "post office"
      ],
      "id": "en-llythyrdy-cy-noun-SzuqT05Y",
      "links": [
        [
          "post office",
          "post office"
        ]
      ],
      "synonyms": [
        {
          "word": "swyddfa bost"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "llythyrdy"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "llythyr",
        "3": "tŷ",
        "t1": "letter",
        "t2": "house"
      },
      "expansion": "llythyr (“letter”) + tŷ (“house”)",
      "name": "com"
    }
  ],
  "etymology_text": "llythyr (“letter”) + tŷ (“house”)",
  "forms": [
    {
      "form": "llythyrtai",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "llythyrdy",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "lythyrdy",
      "source": "mutation",
      "tags": [
        "soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "llythyrtai"
      },
      "expansion": "llythyrdy m (plural llythyrtai)",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Welsh compound terms",
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "cy:Buildings"
      ],
      "glosses": [
        "post office"
      ],
      "links": [
        [
          "post office",
          "post office"
        ]
      ],
      "synonyms": [
        {
          "word": "swyddfa bost"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "llythyrdy"
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: llythyrdy/Welsh 'radical' base_tags=set()",
  "path": [
    "llythyrdy"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "llythyrdy",
  "trace": ""
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: llythyrdy/Welsh 'nasal' base_tags={'error-unrecognized-form', 'soft'}",
  "path": [
    "llythyrdy"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "llythyrdy",
  "trace": ""
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: llythyrdy/Welsh 'aspirate' base_tags={'error-unrecognized-form', 'soft'}",
  "path": [
    "llythyrdy"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "llythyrdy",
  "trace": ""
}