Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Estonian
higi
←
Proto-Finnic
*hiki
(inherited)
→
Estonian
higistama
(affix)
→
Estonian
higine
(suffix)
→
Finnish
hiki
(cognate)