Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Greek
τρόμος
←
Ancient Greek
τρόμος
(inherited)
←
Proto-Indo-European
*trem-
(derived)
→
Greek
τρομοκράτης
(affix)
→
Greek
τρομοκρατία
(affix)
→
Greek
έντρομος
(affix)