Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
вы́бор
→
Belarusian
выбар
(cognate)
→
Russian
выборщик
(affix)
→
Ukrainian
вибір
(cognate)