Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
chummy
←
English
chum
(suffix)
←
English
y
(suffix)
→
English
chum
(link)
→
English
chumminess
(suffix)
→
English
chummily
(suffix)
→
English
unchummy
(prefix)