Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
боло́то
→
English
pool
(cognate)
→
Belarusian
балота
(cognate)
→
Russian
блато
(doublet)
→
Russian
болотце
(affix)
→
Russian
болотный
(affix)
→
Russian
болотистый
(affix)
→
Aromanian
baltã
(cognate)