Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
scourer
←
English
scour
(affix)
←
English
-er
(affix)
←
Middle English
scourer
(inherited)
←
Middle English
skourer
(mention)
←
Middle English
scowrrere
(mention)