Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
coincidental
←
English
co
(prefix)
←
English
incidental
(prefix)
→
English
coincidentally
(suffix)
→
English
noncoincidental
(prefix)
→
English
uncoincidental
(prefix)
→
English
coincidentalism
(suffix)