Old High German klocca

← Proto-Celtic *klokkos (derived)

← Welsh cloch (cognate)

← Irish clog (cognate)

← Proto-Indo-European *klēg- (derived)

← Proto-Indo-European *klōg- (mention)

← Old Norse klokka (cognate)

→ Cimbrian klòkke (mention)

→ German Glocke (inherited)

→ Alemannic German Glogg (mention)

→ Luxembourgish Klack (inherited)

→ Old Norse klokka (cognate)