Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ingrian
-ki
←
Estonian
-gi
(cognate)
←
Finnish
-kin
(cognate)
←
Proto-Finnic
*-kik
(inherited)
→
Ingrian
ainakki
(suffix)
→
Ingrian
kumpainki
(suffix)