dlaczego.
why (for what cause, reason, or purpose)
Meaning & usage
why (for what cause, reason, or purpose)
Where this word comes from
Etymology tree Proto-Indo-European *delh₁- Proto-Indo-European *-yeh₂ Proto-Balto-Slavic *-jāˀ Proto-Slavic *-ja Proto-Slavic *dьľa Old Polish dla Proto-Indo-European *kʷ- Proto-Indo-European *kʷís Proto-Indo-European *kʷídder. Proto-Slavic *česo Old Polish czego univ. Old Polish dlaczego Polish dlaczego Inherited from Old Polish dlaczego. By surface analysis, univerbation of dla + czego. Compare Kashubian dlôczegò and Slovincian dluczú.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.