"костьми" meaning in Old Church Slavonic

{
  "forms": [
    {
      "form": "kostĭmi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cu",
        "2": "noun"
      },
      "expansion": "костьми • (kostĭmi)",
      "name": "head"
    }
  ],
  "lang": "Old Church Slavonic",
  "lang_code": "cu",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Church Slavonic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "lay my bones beside his bones […]",
          "ref": "1581, Ostrog Bible, 1 Kings 13.31:",
          "text": "да съхрани́тсѧ ко́сть моѧ̀ с ко́стьми е҆го·",
          "type": "quote"
        }
      ],
      "form_of": [
        {
          "extra": "kostĭ",
          "word": "кость"
        }
      ],
      "glosses": [
        "instrumental plural of кость (kostĭ)"
      ],
      "id": "en-костьми-cu-noun-ZKz8Rsdw",
      "links": [
        [
          "кость",
          "кость#Old_Church_Slavonic"
        ]
      ],
      "tags": [
        "Old-East-Church-Slavonic",
        "form-of",
        "instrumental",
        "plural"
      ]
    }
  ],
  "word": "костьми"
}

{
  "forms": [
    {
      "form": "kostĭmi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cu",
        "2": "noun"
      },
      "expansion": "костьми • (kostĭmi)",
      "name": "head"
    }
  ],
  "lang": "Old Church Slavonic",
  "lang_code": "cu",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Old Church Slavonic entries with incorrect language header",
        "Old Church Slavonic lemmas",
        "Old Church Slavonic nouns",
        "Old Church Slavonic terms with quotations",
        "Pages with 2 entries",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "english": "lay my bones beside his bones […]",
          "ref": "1581, Ostrog Bible, 1 Kings 13.31:",
          "text": "да съхрани́тсѧ ко́сть моѧ̀ с ко́стьми е҆го·",
          "type": "quote"
        }
      ],
      "form_of": [
        {
          "extra": "kostĭ",
          "word": "кость"
        }
      ],
      "glosses": [
        "instrumental plural of кость (kostĭ)"
      ],
      "links": [
        [
          "кость",
          "кость#Old_Church_Slavonic"
        ]
      ],
      "tags": [
        "Old-East-Church-Slavonic",
        "form-of",
        "instrumental",
        "plural"
      ]
    }
  ],
  "word": "костьми"
}