Old Prussian kīsman

← Proto-Balto-Slavic *keʔs- (derived)

← Proto-Indo-European *k(ʷ)eh₁s- (derived)

← Old Prussian (mention)

← Proto-Slavic *časъ (cognate)

→ Polish czas (cognate)

→ Albanian kohë (cognate)

→ Old Polish czas (cognate)