"sep" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "sep"
      },
      "expansion": "Esperanto sep",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "la",
        "3": "septem"
      },
      "expansion": "Latin septem",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "ine-pro",
        "3": "*septḿ̥"
      },
      "expansion": "Proto-Indo-European *septḿ̥",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto sep, from Latin septem, ultimately from Proto-Indo-European *septḿ̥.",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "numeral"
      },
      "expansion": "sep",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Ido cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ido entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "seven (7)"
      ],
      "id": "en-sep-io-num-zZ2InLsx",
      "links": [
        [
          "seven",
          "seven"
        ]
      ]
    }
  ],
  "word": "sep"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "sep"
      },
      "expansion": "Esperanto sep",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "la",
        "3": "septem"
      },
      "expansion": "Latin septem",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "ine-pro",
        "3": "*septḿ̥"
      },
      "expansion": "Proto-Indo-European *septḿ̥",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto sep, from Latin septem, ultimately from Proto-Indo-European *septḿ̥.",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "numeral"
      },
      "expansion": "sep",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Ido cardinal numbers",
        "Ido entries with incorrect language header",
        "Ido lemmas",
        "Ido numerals",
        "Ido terms borrowed from Esperanto",
        "Ido terms derived from Esperanto",
        "Ido terms derived from Latin",
        "Ido terms derived from Proto-Indo-European"
      ],
      "glosses": [
        "seven (7)"
      ],
      "links": [
        [
          "seven",
          "seven"
        ]
      ]
    }
  ],
  "word": "sep"
}