Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
pior
←
Proto-Indo-European
*ped-yōs
(inherited)
←
Latin
peior
(inherited)
←
Old Portuguese
peor
(inherited)
←
Old Portuguese
peyor
(mention)