"-ндай" meaning in Kazakh

{
  "forms": [
    {
      "form": "-ndai",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "kk",
        "2": "suffix form"
      },
      "expansion": "-ндай • (-ndai)",
      "name": "head"
    }
  ],
  "lang": "Kazakh",
  "lang_code": "kk",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Kazakh entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "(-dei) in hard words after the third-person possessive ending -сі/-сы/-і/-ы (-sı/-sy/-ı/-y)",
          "word": "-дей"
        }
      ],
      "glosses": [
        "Form of -дей (-dei) in hard words after the third-person possessive ending -сі/-сы/-і/-ы (-sı/-sy/-ı/-y)."
      ],
      "id": "en--ндай-kk-suffix-rGwQFpG~",
      "links": [
        [
          "-дей",
          "-дей#Kazakh"
        ],
        [
          "-сі/-сы/-і/-ы",
          "-сі#Kazakh"
        ]
      ],
      "tags": [
        "form-of",
        "morpheme"
      ]
    }
  ],
  "word": "-ндай"
}

{
  "forms": [
    {
      "form": "-ndai",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "kk",
        "2": "suffix form"
      },
      "expansion": "-ндай • (-ndai)",
      "name": "head"
    }
  ],
  "lang": "Kazakh",
  "lang_code": "kk",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Kazakh entries with incorrect language header",
        "Kazakh non-lemma forms",
        "Kazakh suffix forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "(-dei) in hard words after the third-person possessive ending -сі/-сы/-і/-ы (-sı/-sy/-ı/-y)",
          "word": "-дей"
        }
      ],
      "glosses": [
        "Form of -дей (-dei) in hard words after the third-person possessive ending -сі/-сы/-і/-ы (-sı/-sy/-ı/-y)."
      ],
      "links": [
        [
          "-дей",
          "-дей#Kazakh"
        ],
        [
          "-сі/-сы/-і/-ы",
          "-сі#Kazakh"
        ]
      ],
      "tags": [
        "form-of",
        "morpheme"
      ]
    }
  ],
  "word": "-ндай"
}