German gewiss

← Proto-Germanic *gawissaz (inherited)

← Middle High German gewis (inherited)

← Old High German giwis (inherited)

← Proto-Indo-European *weyd- (root)

← Dutch wis (cognate)

→ English iwis (cognate)

→ Old English gewiss (cognate)

→ Danish vis (cognate)

→ German ungewiss (prefix)

→ German Gewissheit (suffix)

→ German gewissermaßen (mention)

→ German siegesgewiss (compound)

→ Dutch gewis (cognate)