Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
conversant
←
Old French
conversant
(mention)
←
Old French
converser
(mention)
→
English
interlocutor
(link)
→
English
nonconversant
(prefix)
→
English
unconversant
(prefix)
→
English
conversancy
(suffix)
→
English
conversantly
(suffix)
→
English
inconversant
(prefix)