Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
кре́пкий
→
Belarusian
крэпкі
(cognate)
→
Russian
крепко
(affix)
→
Russian
крепить
(affix)