Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
thankless
←
English
thank
(suffix)
←
English
less
(suffix)
←
Middle English
thankles
(inherited)
→
English
thanklessly
(suffix)
→
English
thanklessness
(suffix)