Where does “dlaczego” come from?

dlaczego (Polish) comes from Old Polish dlaczego, from Old Polish dla, from Proto-Slavic dьľa — length.

dlaczego (Polish): why

Definitions

  1. why

Ancestry of “dlaczego”, step by step

StepLanguageWordMeaning
1Old Polishdlaczegothat's why, so, ergo
2Old Polishdlabecause of
3Proto-Slavicdьľalength

Words derived from “dlaczego”

Every word from Proto-Slavic dьľa →Every word from Old Polish dla →Every word from Old Polish dlaczego →