Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
acenar
←
Latin
cinnus
(mention)
←
Portuguese
cenho
(mention)
→
Portuguese
aceno
(back-formation)
→
Portuguese
aceno
(mention)