Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ingrian
oppi
←
Finnish
oppi
(cognate)
←
Ingrian
oppia
(suffix)
←
Ingrian
-i
(suffix)
→
Ingrian
äänioppi
(compound)