Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Portuguese
cavalo
←
Gaulish
caballos
(derived)
←
Latin
caballus
(inherited)
→
Galician
cabalo
(inherited)
→
Portuguese
cavalo
(inherited)
→
Portuguese
cavalaria
(mention)