"-ero" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "en",
        "3": "-er"
      },
      "expansion": "English -er",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "fr",
        "3": "-eur"
      },
      "expansion": "French -eur",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "de",
        "3": "-er"
      },
      "expansion": "German -er",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "ru",
        "3": "-ер"
      },
      "expansion": "Russian -ер (-er)",
      "name": "bor"
    },
    {
      "args": {
        "1": "-er",
        "2": "-eur",
        "3": "-er",
        "4": "",
        "5": "-ер"
      },
      "expansion": "Borrowed from English -er, French -eur, German -er, Russian -ер (-er).",
      "name": "io-bor"
    }
  ],
  "etymology_text": "Borrowed from English -er, French -eur, German -er, Russian -ер (-er).",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "suffix",
        "cat2": "noun-forming suffixes",
        "cat3": ""
      },
      "expansion": "-ero",
      "name": "head"
    },
    {
      "args": {
        "1": "n"
      },
      "expansion": "-ero",
      "name": "io-suffix"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "52 48",
          "kind": "other",
          "name": "Ido entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "boxar (“to box”) + -ero → boxero (“(amateur) boxer”)",
          "type": "example"
        }
      ],
      "glosses": [
        "suffix denoting a person occupied in a customary though not professional activity or occupation"
      ],
      "id": "en--ero-io-suffix-JXMCC11H",
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [
        {
          "_dis": "52 48",
          "kind": "other",
          "name": "Ido entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "rodar (“to gnaw”) + -ero → rodero (“rodent”)",
          "type": "example"
        },
        {
          "text": "krozar (“to cruise”) + -ero → krozero (“cruiser”)",
          "type": "example"
        },
        {
          "text": "(neologism) komputar (“to compute”) + -ero → komputero (“computer”)",
          "type": "example"
        }
      ],
      "glosses": [
        "suffix denoting an animal or other thing with a characteristic action"
      ],
      "id": "en--ero-io-suffix-oWwVcOko",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈero/"
    }
  ],
  "word": "-ero"
}

{
  "categories": [
    "Ido entries with incorrect language header",
    "Ido lemmas",
    "Ido noun-forming suffixes",
    "Ido suffixes",
    "Ido terms borrowed from English",
    "Ido terms borrowed from French",
    "Ido terms borrowed from German",
    "Ido terms borrowed from Russian",
    "Ido terms derived from English",
    "Ido terms derived from French",
    "Ido terms derived from German",
    "Ido terms derived from Russian",
    "Ido terms with IPA pronunciation"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "en",
        "3": "-er"
      },
      "expansion": "English -er",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "fr",
        "3": "-eur"
      },
      "expansion": "French -eur",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "de",
        "3": "-er"
      },
      "expansion": "German -er",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "ru",
        "3": "-ер"
      },
      "expansion": "Russian -ер (-er)",
      "name": "bor"
    },
    {
      "args": {
        "1": "-er",
        "2": "-eur",
        "3": "-er",
        "4": "",
        "5": "-ер"
      },
      "expansion": "Borrowed from English -er, French -eur, German -er, Russian -ер (-er).",
      "name": "io-bor"
    }
  ],
  "etymology_text": "Borrowed from English -er, French -eur, German -er, Russian -ер (-er).",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "suffix",
        "cat2": "noun-forming suffixes",
        "cat3": ""
      },
      "expansion": "-ero",
      "name": "head"
    },
    {
      "args": {
        "1": "n"
      },
      "expansion": "-ero",
      "name": "io-suffix"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "suffix",
  "senses": [
    {
      "examples": [
        {
          "text": "boxar (“to box”) + -ero → boxero (“(amateur) boxer”)",
          "type": "example"
        }
      ],
      "glosses": [
        "suffix denoting a person occupied in a customary though not professional activity or occupation"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "text": "rodar (“to gnaw”) + -ero → rodero (“rodent”)",
          "type": "example"
        },
        {
          "text": "krozar (“to cruise”) + -ero → krozero (“cruiser”)",
          "type": "example"
        },
        {
          "text": "(neologism) komputar (“to compute”) + -ero → komputero (“computer”)",
          "type": "example"
        }
      ],
      "glosses": [
        "suffix denoting an animal or other thing with a characteristic action"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈero/"
    }
  ],
  "word": "-ero"
}