Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
folgar
←
Latin
follicō
(mention)
←
Latin
follis
(inherited)
←
Old Portuguese
folgar
(inherited)
→
Portuguese
folga
(back-formation)
→
Portuguese
folegar
(mention)