Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
kiep
←
Proto-Slavic
*kъpъ
(inherited)
→
Belarusian
кепскі
(derived)
→
Polish
kiepski
(suffix)