Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
oscuro
←
Latin
obscūrus
(inherited)
→
English
oscuro
(borrowed)
→
Spanish
oscurecer
(affix)
→
Spanish
oscuramente
(affix)
→
Spanish
oscurísimo
(suffix)
→
Spanish
oscurito
(suffix)