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

→ Old Church Slavonic кровъ (inherited)
→ Macedonian кров (inherited)
→ Romanian crov (derived)
→ Russian кров (inherited)
→ Russian кровля (mention)
→ Serbo-Croatian krov (inherited)
→ Serbo-Croatian кров (inherited)