Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Dutch
conjectuur
←
French
conjecture
(borrowed)
←
Latin
coniectūra
(derived)
→
Dutch
conjectureel
(suffix)
→
Dutch
conjecturaal
(suffix)