Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
regola
←
Spanish
regla
(cognate)
←
French
règle
(cognate)
←
Proto-Indo-European
*h₃reǵ-
(root)
←
Latin
rēgula
(borrowed)
←
Portuguese
regra
(cognate)
→
Italian
regolare
(suffix)
→
Italian
regolare
(link)
→
Italian
regolazione
(suffix)