Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
retentivo
←
Italian
ritentivo
(doublet)
←
Latin
retentus
(derived)
→
Italian
retentività
(suffix)
→
Italian
ritentivo
(doublet)