Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
chuvia
←
Proto-Indo-European
*plew-
(derived)
←
Latin
pluvia
(inherited)
←
Old Portuguese
chuvia
(inherited)
→
Galician
chuvisca
(suffix)
→
Galician
chuvasco
(suffix)
→
Galician
chuviña
(suffix)
→
Portuguese
chuva
(cognate)