Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
par
←
Proto-Indo-European
*per
(inherited)
←
Latin
pār
(inherited)
←
Old Portuguese
par
(inherited)
→
Portuguese
páreo
(suffix)