Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*sǫmьněti
→
Old Church Slavonic
сѫмьнѣти
(inherited)
→
Old Polish
sąmnieć
(inherited)