Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
biesiada
←
Proto-Slavic
*besěda
(inherited)
→
Polish
biesiadować
(affix)
→
Polish
biesiadnik
(affix)