Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
батѧ
←
Proto-Slavic
*batę
(inherited)
→
Belarusian
баця
(inherited)
→
Russian
батя
(inherited)