Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
regente
←
Latin
regēns
(borrowed)
←
Latin
regentis
(mention)
→
Spanish
regentar
(affix)
→
Spanish
regentear
(affix)