Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
kubek
←
Proto-Slavic
*kubъkъ
(inherited)
←
Proto-Slavic
*kubъ
(mention)
→
Polish
kubeczek
(suffix)
→
Russian
куб
(cognate)