Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
mexillón
←
Latin
muscellus
(inherited)
←
Latin
musculus
(derived)
←
Portuguese
mexilhão
(cognate)
→
Spanish
mejillón
(borrowed)
→
Galician
murar
(link)
→
Portuguese
mexilhão
(cognate)