Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
рои́ть
→
Belarusian
раіць
(cognate)
→
Russian
рой
(link)
→
Russian
роение
(affix)
→
Russian
роиться
(affix)
→
Ukrainian
роїти
(cognate)