Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
vak
←
Czech
váček
(back-formation)
←
Czech
-ek
(mention)
←
Middle High German
wātsac
(derived)
→
Czech
vakovlk
(compound)