"prosternas" meaning in Ido

{
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "verb form"
      },
      "expansion": "prosternas",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "verb",
  "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 4 entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "prosternar"
        }
      ],
      "glosses": [
        "present of prosternar"
      ],
      "id": "en-prosternas-io-verb-7n5px0Le",
      "links": [
        [
          "prosternar",
          "prosternar#Ido"
        ]
      ],
      "tags": [
        "form-of",
        "present"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/prosˈternas/"
    }
  ],
  "word": "prosternas"
}

{
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "verb form"
      },
      "expansion": "prosternas",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Ido entries with incorrect language header",
        "Ido non-lemma forms",
        "Ido terms with IPA pronunciation",
        "Ido verb forms",
        "Pages with 4 entries"
      ],
      "form_of": [
        {
          "word": "prosternar"
        }
      ],
      "glosses": [
        "present of prosternar"
      ],
      "links": [
        [
          "prosternar",
          "prosternar#Ido"
        ]
      ],
      "tags": [
        "form-of",
        "present"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/prosˈternas/"
    }
  ],
  "word": "prosternas"
}