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

→ Belarusian куды (inherited)
→ Bulgarian къде (inherited)
→ Czech kudy (inherited)
→ Old Church Slavonic кѫдѣ (inherited)
→ Polish kędy (inherited)
→ Russian куда (inherited)
→ Serbo-Croatian kuda (inherited)
→ Serbo-Croatian куда (inherited)
→ Ukrainian куди (inherited)