Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
tebras
←
Spanish
tinieblas
(cognate)
←
Latin
tenebrae
(inherited)
←
Portuguese
trevas
(cognate)
←
Old Portuguese
tẽevras
(inherited)
→
Portuguese
trevas
(cognate)