Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
caco
←
Spanish
cacho
(cognate)
←
Galician
cacho
(cognate)
←
Latin
caccabus
(derived)
→
Spanish
cacho
(cognate)
→
Galician
cacho
(cognate)