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

→ French graphène (suffix)
→ French butène (confix)
→ French pentaène (confix)
→ French tetraène (confix)
→ French triène (confix)
→ French diène (confix)
→ French polyène (confix)