"perko" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "perko"
      },
      "expansion": "Esperanto perko",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "la",
        "3": "perca"
      },
      "expansion": "Latin perca",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "grc",
        "3": "πέρκη",
        "4": "",
        "5": "perch"
      },
      "expansion": "Ancient Greek πέρκη (pérkē, “perch”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto perko, from Latin perca, from Ancient Greek πέρκη (pérkē, “perch”), cognate with περκνός (perknós, “dark-spotted”).",
  "forms": [
    {
      "form": "perki",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "noun",
        "head": ""
      },
      "expansion": "perko",
      "name": "head"
    },
    {
      "args": {
        "1": "perk"
      },
      "expansion": "perko (plural perki)",
      "name": "io-noun"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ido entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "io",
          "name": "Fish",
          "orig": "io:Fish",
          "parents": [
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "perch"
      ],
      "id": "en-perko-io-noun-h~sA0lnL",
      "links": [
        [
          "perch",
          "perch"
        ]
      ]
    }
  ],
  "word": "perko"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "perko"
      },
      "expansion": "Esperanto perko",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "la",
        "3": "perca"
      },
      "expansion": "Latin perca",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "grc",
        "3": "πέρκη",
        "4": "",
        "5": "perch"
      },
      "expansion": "Ancient Greek πέρκη (pérkē, “perch”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto perko, from Latin perca, from Ancient Greek πέρκη (pérkē, “perch”), cognate with περκνός (perknós, “dark-spotted”).",
  "forms": [
    {
      "form": "perki",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "noun",
        "head": ""
      },
      "expansion": "perko",
      "name": "head"
    },
    {
      "args": {
        "1": "perk"
      },
      "expansion": "perko (plural perki)",
      "name": "io-noun"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Ido entries with incorrect language header",
        "Ido lemmas",
        "Ido nouns",
        "Ido terms derived from Ancient Greek",
        "Ido terms derived from Esperanto",
        "Ido terms derived from Latin",
        "Pages with 2 entries",
        "Pages with entries",
        "io:Fish"
      ],
      "glosses": [
        "perch"
      ],
      "links": [
        [
          "perch",
          "perch"
        ]
      ]
    }
  ],
  "word": "perko"
}