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

→ French oologie (confix)
→ French oophore (confix)
→ French oosphère (prefix)
→ French oogame (confix)
→ French oolithe (confix)
→ French oophage (confix)
→ French oophagie (confix)
→ French oogenèse (confix)