Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Ido facila
Esperanto facila (derived)

Ido desfacila (prefix)
Ido desfacileskar (affix)
Ido facileskar (affix)
Ido faciligar (affix)
Ido desfaciligar (affix)