"-dürük" meaning in Proto-Turkic

{
  "etymology_text": "There also exists a variant *-dük as a result of crasis *-dürük. The suffix *-dak may also be related.",
  "head_templates": [
    {
      "args": {
        "1": "trk-pro",
        "2": "suffix",
        "cat2": "noun-forming suffixes"
      },
      "expansion": "*-dürük",
      "name": "head"
    }
  ],
  "lang": "Proto-Turkic",
  "lang_code": "trk-pro",
  "original_title": "Reconstruction:Proto-Turkic/-dürük",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Proto-Turkic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "boyïn (“neck”) + *-dürük → *boyïnduruk (“yoke”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Forms denominal nouns used for objects relating to a body part"
      ],
      "id": "en--dürük-trk-pro-suffix-dXUTnw5Z",
      "links": [
        [
          "denominal",
          "denominal#English"
        ],
        [
          "noun",
          "noun#English"
        ]
      ],
      "tags": [
        "morpheme",
        "reconstruction"
      ]
    }
  ],
  "word": "-dürük"
}

{
  "etymology_text": "There also exists a variant *-dük as a result of crasis *-dürük. The suffix *-dak may also be related.",
  "head_templates": [
    {
      "args": {
        "1": "trk-pro",
        "2": "suffix",
        "cat2": "noun-forming suffixes"
      },
      "expansion": "*-dürük",
      "name": "head"
    }
  ],
  "lang": "Proto-Turkic",
  "lang_code": "trk-pro",
  "original_title": "Reconstruction:Proto-Turkic/-dürük",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Proto-Turkic entries with incorrect language header",
        "Proto-Turkic lemmas",
        "Proto-Turkic noun-forming suffixes",
        "Proto-Turkic suffixes"
      ],
      "examples": [
        {
          "text": "boyïn (“neck”) + *-dürük → *boyïnduruk (“yoke”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Forms denominal nouns used for objects relating to a body part"
      ],
      "links": [
        [
          "denominal",
          "denominal#English"
        ],
        [
          "noun",
          "noun#English"
        ]
      ],
      "tags": [
        "morpheme",
        "reconstruction"
      ]
    }
  ],
  "word": "-dürük"
}