Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
mârșav
←
Proto-Slavic
*mъršavъ
(mention)
→
Bulgarian
мършав
(cognate)
→
Romanian
mârșăvie
(suffix)