Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
sojusz
←
Old Church Slavonic
съѭзъ
(derived)
←
Russian
сою́з
(borrowed)
→
Polish
sojusznik
(suffix)