Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ingrian
pittuus
←
Finnish
pituus
(cognate)
←
Proto-Finnic
*piduc
(inherited)
←
Ingrian
pitkä
(suffix)
←
Ingrian
-us
(suffix)