Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
παρατηρητής
←
Ancient Greek
παρατηρέω
(affix)
←
Ancient Greek
-τής
(affix)
→
Greek
παρατηρητής
(inherited)