Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
гру́бый
→
Belarusian
грубы
(cognate)
→
Russian
грубо
(affix)
→
Russian
грубость
(affix)
→
Russian
грубоватый
(affix)
→
Russian
грубить
(affix)