"dab tsi" meaning in White Hmong

{
  "etymology_text": "From an element of uncertain interpretation dab + tsi (“what”).",
  "head_templates": [
    {
      "args": {
        "1": "mww",
        "2": "pronoun"
      },
      "expansion": "dab tsi",
      "name": "head"
    }
  ],
  "lang": "White Hmong",
  "lang_code": "mww",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "White Hmong entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "White Hmong pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "what"
      ],
      "id": "en-dab_tsi-mww-pron-dJqywNBs",
      "links": [
        [
          "what",
          "what"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/da˥.t͡ʂi˧/"
    }
  ],
  "word": "dab tsi"
}

{
  "etymology_text": "From an element of uncertain interpretation dab + tsi (“what”).",
  "head_templates": [
    {
      "args": {
        "1": "mww",
        "2": "pronoun"
      },
      "expansion": "dab tsi",
      "name": "head"
    }
  ],
  "lang": "White Hmong",
  "lang_code": "mww",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "White Hmong entries with incorrect language header",
        "White Hmong lemmas",
        "White Hmong multiword terms",
        "White Hmong pronouns",
        "White Hmong terms with IPA pronunciation"
      ],
      "glosses": [
        "what"
      ],
      "links": [
        [
          "what",
          "what"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/da˥.t͡ʂi˧/"
    }
  ],
  "word": "dab tsi"
}