Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
легион
←
Bulgarian
legō
(affix)
←
Bulgarian
-ион
(affix)
←
Old Church Slavonic
лег҄еонъ
(inherited)