Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
theater
←
Old French
theatre
(borrowed)
←
Ancient Greek
θέατρον
(derived)
←
Latin
theatrum
(derived)
→
English
theater
(inherited)
→
English
theatre
(inherited)