Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
oikukas
←
Finnish
oikku
(affix)
←
Finnish
-kas
(affix)
→
Finnish
oikukkaasti
(affix)
→
Finnish
oikukkuus
(affix)