Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
unidiomatic
←
English
un
(prefix)
←
English
idiomatic
(prefix)
→
English
unidiomatically
(suffix)
→
English
unidiomaticity
(suffix)