Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Dutch
et
→
Dutch
etmaal
(prefix)
→
Dutch
etgras
(prefix)
→
Dutch
etgroen
(prefix)
→
Dutch
bruinet
(suffix)