Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Germanic *twi-

→ English twist (mention)
→ English twi- (inherited)
→ Old English twi- (inherited)
→ Danish tve- (derived)
→ Icelandic tví- (inherited)
→ Old Norse tví- (inherited)
→ Swedish tvist (derived)