köken: From Middle High German spāt (less often also spăt, possibly by confusion with etymology 2 below). There are no known cognates, but probably related to Span (“shaving, clipping”).
köken: Inherited from Proto-Slavic *stъlbъ. Cognate with Old Church Slavonic стлъба (stlŭba, “summit”), Lithuanian stul̃bas, Latvian stulbs, Old Norse stolpi (“pillar”).