"-os" meaning in Esperanto

{
  "etymology_text": "The Esperanto suffixes -as, -is, -os, -us are related, and appear to have been inspired by previous language projects:\n: This play of vowels is not an original idea of Zamenhof's: -as, -is, -os are found for the three tenses of the infinitive in Faiguet's system of 1765; -a, -i, -o without a consonant are used like Z's -as, -is, -os by Rudelle (1858); Courtonne in 1885 had -am, -im, -om in the same values, and the similarity with Esperanto is here even more perfect than in the other projects, as -um corresponds to Z's -us. —An International Language (1928)",
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "suffix"
      },
      "expansion": "-os",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto 1894 Universala Vortaro",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto BRO1",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 14 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Words approved by the Akademio de Esperanto",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "I will go to the store.",
          "text": "Mi iros al la vendejo.",
          "type": "example"
        }
      ],
      "glosses": [
        "will; ending of future tense in verbs."
      ],
      "head_nr": 1,
      "id": "en--os-eo-suffix-HFDJ~xxG",
      "links": [
        [
          "will",
          "will"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-os"
}

{
  "categories": [
    "Pages with 14 entries",
    "Pages with entries"
  ],
  "etymology_text": "The Esperanto suffixes -as, -is, -os, -us are related, and appear to have been inspired by previous language projects:\n: This play of vowels is not an original idea of Zamenhof's: -as, -is, -os are found for the three tenses of the infinitive in Faiguet's system of 1765; -a, -i, -o without a consonant are used like Z's -as, -is, -os by Rudelle (1858); Courtonne in 1885 had -am, -im, -om in the same values, and the similarity with Esperanto is here even more perfect than in the other projects, as -um corresponds to Z's -us. —An International Language (1928)",
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "suffix"
      },
      "expansion": "-os",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Esperanto 1894 Universala Vortaro",
        "Esperanto BRO1",
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto suffixes",
        "Esperanto terms with usage examples",
        "Pages with 14 entries",
        "Pages with entries",
        "Words approved by the Akademio de Esperanto"
      ],
      "examples": [
        {
          "english": "I will go to the store.",
          "text": "Mi iros al la vendejo.",
          "type": "example"
        }
      ],
      "glosses": [
        "will; ending of future tense in verbs."
      ],
      "head_nr": 1,
      "links": [
        [
          "will",
          "will"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-os"
}

{
  "called_from": "page/1713/20221215",
  "msg": "later head without list of senses,template node #, -os/Esperanto",
  "path": [
    "-os"
  ],
  "section": "Esperanto",
  "subsection": "suffix",
  "title": "-os",
  "trace": ""
}