Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
costa
←
Proto-Indo-European
*kost-
(derived)
←
Latin
costa
(inherited)
←
Old Portuguese
costa
(inherited)
→
Asturian
costa
(cognate)
→
Spanish
costa
(borrowed)
→
Galician
recostar
(affix)
→
Galician
costela
(suffix)
→
Galician
costeiro
(suffix)
→
Galician
costeira
(suffix)
→
Galician
Costa
(mention)
→
Galician
Dacosta
(mention)
→
Galician
entrecosto
(prefix)