"восьмерых" meaning in Russian

{
  "forms": [
    {
      "form": "восьмеры́х",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "vosʹmerýx",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "numeral form",
        "head": "восьмеры́х"
      },
      "expansion": "восьмеры́х • (vosʹmerýx)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "num",
  "senses": [
    {
      "glosses": [
        "inflection of во́сьмеро (vósʹmero):",
        "genitive/prepositional"
      ],
      "id": "en-восьмерых-ru-num-iAxnoo62",
      "links": [
        [
          "во́сьмеро",
          "восьмеро#Russian"
        ]
      ],
      "tags": [
        "form-of",
        "genitive",
        "prepositional"
      ]
    },
    {
      "categories": [
        {
          "_dis": "37 63",
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "inflection of во́сьмеро (vósʹmero):",
        "animate accusative"
      ],
      "id": "en-восьмерых-ru-num-xpqdLXgi",
      "links": [
        [
          "во́сьмеро",
          "восьмеро#Russian"
        ]
      ],
      "tags": [
        "accusative",
        "animate",
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[vəsʲmʲɪˈrɨx]"
    }
  ],
  "word": "восьмерых"
}

{
  "categories": [
    "Russian 3-syllable words",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian numeral forms",
    "Russian terms with IPA pronunciation"
  ],
  "forms": [
    {
      "form": "восьмеры́х",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "vosʹmerýx",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "numeral form",
        "head": "восьмеры́х"
      },
      "expansion": "восьмеры́х • (vosʹmerýx)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "num",
  "senses": [
    {
      "glosses": [
        "inflection of во́сьмеро (vósʹmero):",
        "genitive/prepositional"
      ],
      "links": [
        [
          "во́сьмеро",
          "восьмеро#Russian"
        ]
      ],
      "tags": [
        "form-of",
        "genitive",
        "prepositional"
      ]
    },
    {
      "glosses": [
        "inflection of во́сьмеро (vósʹmero):",
        "animate accusative"
      ],
      "links": [
        [
          "во́сьмеро",
          "восьмеро#Russian"
        ]
      ],
      "tags": [
        "accusative",
        "animate",
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[vəsʲmʲɪˈrɨx]"
    }
  ],
  "word": "восьмерых"
}