Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
kahdeksastoista
←
Finnish
kahdeksas
(affix)
←
Finnish
toista
(affix)
→
Estonian
kaheksateistkümnes
(cognate)