Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
mahati
←
Proto-Slavic
*maxati
(inherited)
→
Serbo-Croatian
promaja
(prefix)
→
Serbo-Croatian
promaha
(prefix)