Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
печо́ра
→
Belarusian
пячора
(cognate)
→
Russian
пещера
(doublet)
→
Russian
печурка
(affix)
→
Russian
Печора
(mention)