Old Norse tví-

← Old English twi- (cognate)

← Proto-Germanic *twi- (inherited)

← Proto-Indo-European *dwi- (inherited)

← Proto-Indo-European *dwóh₁ (mention)

→ Danish tve- (mention)

→ Westrobothnian tvük (mention)

→ Norwegian Bokmål tve- (mention)

→ Norwegian Bokmål tvi- (derived)

→ Norwegian Nynorsk tvi- (inherited)

→ Old Norse tvífaldr (affix)

→ Old Norse tvífalda (prefix)

→ Old Norse tvíbreiðr (prefix)

→ Old Norse tvítján (prefix)