Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
merciless
←
English
mercy
(suffix)
←
English
less
(suffix)
←
Middle English
merciles
(inherited)
←
Middle English
mercyles
(mention)
→
English
mercilessness
(suffix)
→
English
mercilessly
(suffix)
→
English
unmerciless
(affix)