Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Livvi
-us
←
Estonian
-us
(cognate)
←
Finnish
-us
(cognate)
←
Proto-Finnic
*-us
(inherited)
→
Livvi
tervehys
(affix)
→
Livvi
pehmendys
(suffix)