Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
chalenger
←
Middle English
chalengen
(affix)
←
Middle English
-er
(affix)
→
English
challenger
(inherited)
→
Middle English
chalenge
(link)