Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
theoretic
←
Ancient Greek
θεωρητικός
(derived)
←
Latin
theōrēticus
(borrowed)
→
English
theoretical
(affix)
→
English
conspiracy-theoretic
(mention)
→
English
theoreticize
(suffix)
→
English
metatheoretic
(prefix)