Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
regula
←
French
réguler
(borrowed)
←
Latin
regulare
(borrowed)
←
Romanian
regla
(doublet)
→
Romanian
regla
(doublet)
→
Romanian
regulare
(suffix)
→
Romanian
regulat
(mention)
→
Romanian
regularisi
(suffix)