"-n" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "-n"
      },
      "expansion": "Esperanto -n",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "de",
        "3": "-en"
      },
      "expansion": "German -en",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "grc",
        "3": "-ν"
      },
      "expansion": "Ancient Greek -ν (-n)",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto -n, from German -en, Ancient Greek -ν (-n).",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "suffix",
        "cat2": "inflectional suffixes",
        "cat3": ""
      },
      "expansion": "-n",
      "name": "head"
    },
    {
      "args": {
        "1": "i"
      },
      "expansion": "-n",
      "name": "io-suffix"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "suffix",
  "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 raw sortkeys",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "suffix forming accusative"
      ],
      "id": "en--n-io-suffix-q8hV3pie",
      "links": [
        [
          "accusative",
          "accusative#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-n"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "-n"
      },
      "expansion": "Esperanto -n",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "de",
        "3": "-en"
      },
      "expansion": "German -en",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "grc",
        "3": "-ν"
      },
      "expansion": "Ancient Greek -ν (-n)",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto -n, from German -en, Ancient Greek -ν (-n).",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "suffix",
        "cat2": "inflectional suffixes",
        "cat3": ""
      },
      "expansion": "-n",
      "name": "head"
    },
    {
      "args": {
        "1": "i"
      },
      "expansion": "-n",
      "name": "io-suffix"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Ido entries with incorrect language header",
        "Ido inflectional suffixes",
        "Ido lemmas",
        "Ido suffixes",
        "Ido terms derived from Ancient Greek",
        "Ido terms derived from Esperanto",
        "Ido terms derived from German",
        "Pages with raw sortkeys"
      ],
      "glosses": [
        "suffix forming accusative"
      ],
      "links": [
        [
          "accusative",
          "accusative#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-n"
}