Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
postelnic
←
Old Church Slavonic
постельникъ
(borrowed)
←
Russian
постельничий
(cognate)
←
Proto-Slavic
*posteljь
(derived)
←
Ukrainian
Постільничий
(cognate)
→
Romanian
postelniceasă
(suffix)
→
Romanian
Postelnicescu
(mention)
→
Romanian
Postelnicu
(mention)