Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
wilful
←
English
will
(suffix)
←
English
ful
(suffix)
←
Middle English
wilful
(inherited)
→
English
wilfully
(suffix)
→
English
wilfulness
(suffix)
→
English
unwilful
(prefix)