Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
mainful
←
English
main
(suffix)
←
English
ful
(suffix)
←
Middle English
meinful
(inherited)
←
Middle English
mainful
(mention)
←
Middle English
maynful
(mention)