Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
achate
←
Middle English
achate
(derived)
←
Middle English
agaten
(mention)
←
Old French
acate
(derived)
←
Old French
agate
(mention)