Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English oö

→ English oölogy (confix)
→ English oöid (confix)
→ English oögenesis (prefix)
→ English oöphore (confix)
→ English oöphyte (confix)
→ English oösphere (prefix)
→ English oöspheres (prefix)
→ English oötheca (prefix)
→ English oögenetic (prefix)