Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
ota
←
Estonian
oda
(cognate)
←
Proto-Finnic
*ota
(inherited)
→
Finnish
otapäinen
(affix)
→
Finnish
otasukapää
(compound)
→
Finnish
otakärkinen
(affix)
→
Finnish
otalaitainen
(affix)