Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
helmes
←
Middle English
helm
(affix)
←
Middle English
-es
(affix)
←
Middle English
helme
(affix)
←
Middle English
-es
(affix)
←
Middle English
halm
(affix)
←
Middle English
-es
(affix)