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