Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
усъ
→
Belarusian
вус
(inherited)
→
Latvian
ūsa
(borrowed)
→
Russian
ус
(inherited)
→
Ukrainian
вус
(inherited)