Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
lopster
←
Old English
loppestre
(inherited)
←
Middle English
loppe
(affix)
←
Middle English
-ster
(affix)
→
English
lobster
(inherited)
→
Middle English
loppe
(link)