Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
krzepić
←
Proto-Slavic
*krěpiti
(inherited)
→
Polish
krzepnąć
(suffix)
→
Polish
pokrzepić
(prefix)