"sed" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "sed"
      },
      "expansion": "Esperanto sed",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "la",
        "3": "sed"
      },
      "expansion": "Latin sed",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto sed, from Latin sed.",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "conjunction"
      },
      "expansion": "sed",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "conj",
  "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 15 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "but"
      ],
      "id": "en-sed-io-conj-zcKZN4hx",
      "links": [
        [
          "but",
          "but"
        ]
      ],
      "raw_glosses": [
        "(archaic) but"
      ],
      "synonyms": [
        {
          "word": "ma"
        }
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sed/"
    }
  ],
  "word": "sed"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "eo",
        "3": "sed"
      },
      "expansion": "Esperanto sed",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "la",
        "3": "sed"
      },
      "expansion": "Latin sed",
      "name": "der"
    }
  ],
  "etymology_text": "From Esperanto sed, from Latin sed.",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "conjunction"
      },
      "expansion": "sed",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        "Ido conjunctions",
        "Ido entries with incorrect language header",
        "Ido lemmas",
        "Ido terms derived from Esperanto",
        "Ido terms derived from Latin",
        "Ido terms with archaic senses",
        "Pages with 15 entries",
        "Pages with entries"
      ],
      "glosses": [
        "but"
      ],
      "links": [
        [
          "but",
          "but"
        ]
      ],
      "raw_glosses": [
        "(archaic) but"
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sed/"
    }
  ],
  "synonyms": [
    {
      "word": "ma"
    }
  ],
  "word": "sed"
}