Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
coitelo
←
Spanish
cuchillo
(cognate)
←
Latin
cultellus
(inherited)
←
Portuguese
cutelo
(cognate)
←
Old Portuguese
cuitelo
(inherited)
←
Old Portuguese
coitelo
(mention)