"-a" meaning in Translingual

{
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "la",
        "3": "-a"
      },
      "expansion": "Latin -a",
      "name": "bor"
    }
  ],
  "etymology_text": "From Latin -a.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "suffix"
      },
      "expansion": "-a",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "59 41",
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Used to create genus names from proper nouns"
      ],
      "id": "en--a-mul-suffix-Eu0wk7U4",
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "Used to take the form of certain plural Latin-derived taxonomic names"
      ],
      "id": "en--a-mul-suffix-JrMAZzw7",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-a"
}

{
  "categories": [
    "Pages with raw sortkeys",
    "Translingual entries with incorrect language header",
    "Translingual lemmas",
    "Translingual suffixes",
    "Translingual terms borrowed from Latin",
    "Translingual terms derived from Latin"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "la",
        "3": "-a"
      },
      "expansion": "Latin -a",
      "name": "bor"
    }
  ],
  "etymology_text": "From Latin -a.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "suffix"
      },
      "expansion": "-a",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "Used to create genus names from proper nouns"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "Used to take the form of certain plural Latin-derived taxonomic names"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-a"
}