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

→ Bulgarian чайка (inherited)
→ Czech čejka (inherited)
→ Macedonian чајка (inherited)
→ Polish czajka (inherited)
→ Russian чайка (inherited)
→ Slovak čajka (inherited)
→ Ukrainian чайка (inherited)