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

→ English tush (inherited)
→ English tusk (inherited)
→ Old English tusc (inherited)
→ Middle English tusk (inherited)
→ Middle English tusshe (inherited)
→ West Frisian tosk (inherited)
→ Saterland Frisian Tusk (inherited)