Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
openears
←
Old English
open
(compound)
←
Old English
ears
(compound)
→
English
open-arse
(inherited)
→
Middle English
open-ers
(inherited)