Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
бабёр
←
Russian
бобёр
(cognate)
←
Proto-Slavic
*bobrъ
(inherited)
→
Latvian
bebrs
(cognate)