"calendr" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "enm",
        "3": "calender"
      },
      "expansion": "Middle English calender",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Middle English calender.",
  "forms": [
    {
      "form": "calendrau",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "calendrau"
      },
      "expansion": "calendr m (plural calendrau)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Time",
          "orig": "cy:Time",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "calendraidd"
        },
        {
          "word": "calendro"
        }
      ],
      "glosses": [
        "calendar"
      ],
      "id": "en-calendr-cy-noun-UVJ5DieO",
      "links": [
        [
          "calendar",
          "calendar"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "calendr"
}

{
  "derived": [
    {
      "word": "calendraidd"
    },
    {
      "word": "calendro"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "enm",
        "3": "calender"
      },
      "expansion": "Middle English calender",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Middle English calender.",
  "forms": [
    {
      "form": "calendrau",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "calendrau"
      },
      "expansion": "calendr m (plural calendrau)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "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",
        "Welsh terms borrowed from Middle English",
        "Welsh terms derived from Middle English",
        "cy:Time"
      ],
      "glosses": [
        "calendar"
      ],
      "links": [
        [
          "calendar",
          "calendar"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "calendr"
}