Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
occulte
→
French
occulter
(affix)
→
French
occultement
(suffix)
→
Romanian
ocult
(borrowed)
→
Swedish
ockult
(cognate)