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

→ Belarusian шчотка (inherited)
→ Bulgarian четка (inherited)
→ Czech štětka (inherited)
→ Lower Sorbian chóšć (inherited)
→ Macedonian четка (inherited)
→ Polish szczotka (inherited)
→ Russian щётка (inherited)
→ Serbo-Croatian četka (inherited)
→ Serbo-Croatian четка (inherited)
→ Ukrainian щітка (inherited)