Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
saarni
←
Eastern Mari
шертне
(cognate)
←
Proto-Finnic
*saarni
(inherited)
←
Western Mari
шӓртньы
(cognate)
→
Estonian
saar
(cognate)
→
Finnish
mannasaarni
(compound)