Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
quão
←
Latin
quam
(inherited)
←
Old Portuguese
quan
(inherited)
→
Galician
can
(cognate)
→
Portuguese
como
(link)