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

→ Bulgarian обичай (inherited)
→ Czech obyčej (inherited)
→ Old Church Slavonic обꙑчаи (inherited)
→ Macedonian обичај (inherited)
→ Polish obyczaj (inherited)
→ Russian обычай (inherited)
→ Serbo-Croatian običaj (inherited)
→ Serbo-Croatian обичај (inherited)