Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
kamarád
←
French
camarade
(borrowed)
→
Czech
kámoš
(affix)
→
Czech
kamarádka
(affix)
→
Czech
kamarádství
(affix)