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

→ Belarusian так (inherited)
→ Bulgarian така (inherited)
→ Macedonian така (inherited)
→ Polish tak (inherited)
→ Russian так (derived)
→ Russian дык (derived)
→ Ukrainian так (inherited)
→ Yiddish טאַקע (derived)