Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
будучы
←
Belarusian
быць
(affix)
←
Belarusian
-учы
(affix)
←
Russian
бу́дущий
(cognate)