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

→ Azerbaijani oxumaq (inherited)
→ Bashkir уҡыу (inherited)
→ Kazakh оқу (inherited)
→ Kumyk охумакъ (inherited)
→ Ottoman Turkish اوقومق (inherited)
→ Turkish okumak (mention)
→ Tatar уку (inherited)