Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Spanish regular
Latin rēgulāre (borrowed)
Latin rēgulō (mention)

Spanish regulación (affix)
Spanish desregular (affix)
Spanish regularmente (affix)
Spanish regulador (affix)
Spanish regularidad (suffix)
Spanish regularizar (affix)
Spanish autorregularse (affix)