Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Estonian
algama
←
Proto-Finnic
*alkadak
(inherited)
→
Estonian
alg
(mention)
→
Estonian
algaja
(suffix)
→
Estonian
algus
(affix)
→
Finnish
alkaa
(cognate)