Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
onneton
←
Finnish
onni
(suffix)
←
Finnish
ton
(suffix)
→
Estonian
õnnetu
(cognate)
→
Finnish
onnettomuus
(suffix)
→
Finnish
onnettomasti
(suffix)
→
Ingrian
onnetoin
(cognate)