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

→ Belarusian круты (inherited)
→ Bulgarian крут (inherited)
→ Czech krutý (inherited)
→ Czech ukrutný (inherited)
→ Lower Sorbian kšuty (inherited)
→ Upper Sorbian kruty (inherited)
→ Polish kręty (inherited)
→ Russian крутой (inherited)
→ Serbo-Croatian krut (inherited)
→ Serbo-Croatian крут (inherited)
→ Slovene krut (derived)
→ Ukrainian крутий (inherited)