Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
margem
←
Proto-Indo-European
*merg-
(derived)
←
Latin
marginem
(inherited)
←
Latin
margo
(mention)
←
Old Portuguese
margen
(inherited)
→
Catalan
marge
(cognate)
→
Galician
marxe
(cognate)