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

→ English dreary (derived)
→ Old English dreor (derived)
→ German Trauer (derived)
→ Ancient Greek θρυλίσσω (derived)
→ Hunsrik Trauer (derived)
→ Luxembourgish Trauer (derived)
→ Dutch treurig (derived)