Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
theorist
←
English
theory
(suffix)
←
English
ist
(suffix)
→
English
cybertheorist
(prefix)
→
English
nontheorist
(prefix)
→
English
coincidence theorist
(compound)
→
English
ecotheorist
(prefix)