Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Portuguese
rei
←
Proto-Indo-European
*h₃rḗǵs
(inherited)
←
Latin
rēgem
(inherited)
←
Latin
rēx
(mention)
→
Galician
rei
(inherited)
→
Portuguese
rei
(inherited)