"-os" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "-as"
      },
      "expansion": "-as",
      "name": "m"
    },
    {
      "args": {
        "1": "eo",
        "2": "-is"
      },
      "expansion": "-is",
      "name": "m"
    },
    {
      "args": {
        "1": "eo",
        "2": "-os"
      },
      "expansion": "-os",
      "name": "m"
    },
    {
      "args": {
        "1": "eo",
        "2": "-us"
      },
      "expansion": "-us",
      "name": "m"
    }
  ],
  "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",
        "cat2": "endings"
      },
      "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 endings",
          "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": "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"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "-as"
      },
      "expansion": "-as",
      "name": "m"
    },
    {
      "args": {
        "1": "eo",
        "2": "-is"
      },
      "expansion": "-is",
      "name": "m"
    },
    {
      "args": {
        "1": "eo",
        "2": "-os"
      },
      "expansion": "-os",
      "name": "m"
    },
    {
      "args": {
        "1": "eo",
        "2": "-us"
      },
      "expansion": "-us",
      "name": "m"
    }
  ],
  "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",
        "cat2": "endings"
      },
      "expansion": "-os",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Esperanto 1894 Universala Vortaro",
        "Esperanto BRO1",
        "Esperanto endings",
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto suffixes",
        "Esperanto terms with usage examples",
        "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": ""
}