Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
sercher
←
Middle English
serchen
(affix)
←
Middle English
-er
(affix)
←
Old French
cercheor
(borrowed)
→
English
searcher
(inherited)