Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
ob
→
Czech
obzor
(prefix)
→
Czech
objímat
(prefix)
→
Czech
obsadit
(prefix)
→
Czech
oblepit
(prefix)