Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Estonian
peen
←
Finnish
pieni
(cognate)
←
Proto-Finnic
*peeni
(inherited)
→
Estonian
peenendama
(affix)
→
Estonian
peenike
(suffix)
→
Estonian
peenikene
(suffix)
→
Finnish
pieni
(cognate)
→
Ingrian
peeni
(cognate)