köken: From Middle High German glocke, glogge, from Old High German klocca, from Late Latin clocca, probably of Celtic origin, from Proto-Celtic *klokkos (“bell”) (compare Welsh cloch, Irish clog), from Proto-Indo-European *klēg-, *klōg- (onomatopoeia). Cognate with Vilamovian głok and English clock.
köken: From Middle Dutch stolpe; also confer the verb stolpen (“to cover”), related to stelpen (“to stanch”). Cognates include German Stulpe and possibly Old Norse stolpi.