"-iadur" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": "-ātor"
      },
      "expansion": "Latin -ātor",
      "name": "cog"
    }
  ],
  "etymology_text": "Cf. Latin -ātor.",
  "forms": [
    {
      "form": "-iaduron",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "suffix",
        "3": "plural",
        "4": "-iaduron",
        "g": "m"
      },
      "expansion": "-iadur m (plural -iaduron)",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "suffix",
  "senses": [
    {
      "examples": [
        {
          "text": "gair (“word”) + -iadur → geiriadur (“dictionary”)",
          "type": "example"
        },
        {
          "text": "dydd (“day”) + -iadur → dyddiadur (“diary”)",
          "type": "example"
        },
        {
          "text": "blwydd (“year”) + -iadur → blwyddiadur (“yearbook, annual”)",
          "type": "example"
        }
      ],
      "glosses": [
        "book"
      ],
      "id": "en--iadur-cy-suffix-knGf4M-M",
      "links": [
        [
          "book",
          "book"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "text": "cyfrifo (“to count, to compute”) + -iadur → cyfrifiadur (“computer”)",
          "type": "example"
        },
        {
          "text": "rheoli (“to rule, to regulate”) + -iadur → rheoliadur (“pace maker”)",
          "type": "example"
        },
        {
          "text": "cengl (“skein, slip of yarn”) + -iadur → cengliadur (“reel, yarnwindle”)",
          "type": "example"
        }
      ],
      "glosses": [
        "instrument"
      ],
      "id": "en--iadur-cy-suffix-0-Q~g9Bm",
      "links": [
        [
          "instrument",
          "instrument"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    },
    {
      "categories": [
        {
          "_dis": "11 30 60",
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "agent suffix; usually added to a verbal root"
      ],
      "id": "en--iadur-cy-suffix-~6PsLTWL",
      "links": [
        [
          "agent",
          "agent#English"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjadɨ̞r/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˈja(ː)dɪr/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0 0",
      "word": "-adur"
    }
  ],
  "word": "-iadur"
}

{
  "categories": [
    "Welsh entries with incorrect language header",
    "Welsh lemmas",
    "Welsh masculine suffixes",
    "Welsh suffixes",
    "Welsh terms with IPA pronunciation"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": "-ātor"
      },
      "expansion": "Latin -ātor",
      "name": "cog"
    }
  ],
  "etymology_text": "Cf. Latin -ātor.",
  "forms": [
    {
      "form": "-iaduron",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "suffix",
        "3": "plural",
        "4": "-iaduron",
        "g": "m"
      },
      "expansion": "-iadur m (plural -iaduron)",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "suffix",
  "senses": [
    {
      "examples": [
        {
          "text": "gair (“word”) + -iadur → geiriadur (“dictionary”)",
          "type": "example"
        },
        {
          "text": "dydd (“day”) + -iadur → dyddiadur (“diary”)",
          "type": "example"
        },
        {
          "text": "blwydd (“year”) + -iadur → blwyddiadur (“yearbook, annual”)",
          "type": "example"
        }
      ],
      "glosses": [
        "book"
      ],
      "links": [
        [
          "book",
          "book"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "text": "cyfrifo (“to count, to compute”) + -iadur → cyfrifiadur (“computer”)",
          "type": "example"
        },
        {
          "text": "rheoli (“to rule, to regulate”) + -iadur → rheoliadur (“pace maker”)",
          "type": "example"
        },
        {
          "text": "cengl (“skein, slip of yarn”) + -iadur → cengliadur (“reel, yarnwindle”)",
          "type": "example"
        }
      ],
      "glosses": [
        "instrument"
      ],
      "links": [
        [
          "instrument",
          "instrument"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    },
    {
      "glosses": [
        "agent suffix; usually added to a verbal root"
      ],
      "links": [
        [
          "agent",
          "agent#English"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjadɨ̞r/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˈja(ː)dɪr/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "-adur"
    }
  ],
  "word": "-iadur"
}