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

→ Czech kde (inherited)
→ Serbo-Croatian где (derived)
→ Serbo-Croatian gde (derived)
→ Serbo-Croatian gdje (derived)
→ Serbo-Croatian gdi (derived)
→ Serbo-Croatian гдје (derived)
→ Slovak kde (inherited)