Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Spanish
oy
←
Latin
hodie
(inherited)
←
Old Portuguese
oge
(cognate)
→
Spanish
hoy
(inherited)
→
Old Portuguese
oge
(cognate)