Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
potamo
→
English
potamophilous
(confix)
→
English
potamology
(confix)
→
English
potamophobia
(confix)
→
English
potamoplankton
(prefix)