köken: Etymology tree Polish do szczętu Proto-Indo-European *-nós Proto-Balto-Slavic *-inas Proto-Slavic *-ьnъ Old Polish -ny Polish -ny Polish doszczętny From do szczętu + -ny.
köken: From Proto-Finnic *lakja (compare Estonian lai, Livonian laigā, Votic ladʹdʹõ), borrowed from Germanic, either Proto-Germanic *flakją (compare German flach) or alternatively *lēgijaz (compare laakea).