Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
mensualis
→
Spanish
mensual
(derived)
→
Italian
mensuale
(derived)
→
Portuguese
mensal
(mention)
→
Romanian
mensual
(derived)