Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
olennainen
←
Finnish
olla
(suffix)
←
Finnish
nnainen
(suffix)
→
Finnish
epäolennainen
(prefix)
→
Finnish
olennaisesti
(suffix)
→
Finnish
olennaisuus
(suffix)