"-us" meaning in Translingual

{
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "la",
        "3": "-us"
      },
      "expansion": "Learned borrowing from Latin -us",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Latin -us.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "suffix"
      },
      "expansion": "-us",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Taxonomy",
          "orig": "mul:Taxonomy",
          "parents": [
            "Biology",
            "Evolutionary theory",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "6 2 2 2 2 3 4 3 2 0 1 1 1 1 3 1 1 1 1 1 1 1 2 2 2 2 7 7 8 2 2 8 0 3 0 1 1 10 2 3",
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Used to form taxonomic names."
      ],
      "id": "en--us-mul-suffix-2tlSXFyC",
      "links": [
        [
          "taxonomy",
          "taxonomy"
        ]
      ],
      "raw_glosses": [
        "(taxonomy) Used to form taxonomic names."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "taxonomy"
      ]
    }
  ],
  "word": "-us"
}

{
  "categories": [
    "Pages with raw sortkeys"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "la",
        "3": "-us"
      },
      "expansion": "Learned borrowing from Latin -us",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Latin -us.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "suffix"
      },
      "expansion": "-us",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Pages with raw sortkeys",
        "Translingual entries with incorrect language header",
        "Translingual learned borrowings from Latin",
        "Translingual lemmas",
        "Translingual suffixes",
        "Translingual terms borrowed from Latin",
        "Translingual terms derived from Latin",
        "mul:Taxonomy"
      ],
      "glosses": [
        "Used to form taxonomic names."
      ],
      "links": [
        [
          "taxonomy",
          "taxonomy"
        ]
      ],
      "raw_glosses": [
        "(taxonomy) Used to form taxonomic names."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "taxonomy"
      ]
    }
  ],
  "word": "-us"
}