Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
thaumaturgus
←
English
thaumaturge
(doublet)
←
Ancient Greek
θαυματουργός
(derived)
→
English
thaumaturge
(doublet)