Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
учити
→
Belarusian
вучыцца
(inherited)
→
Russian
учить
(inherited)
→
Russian
учиться
(inherited)