Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Estonian
magu
←
Proto-Finnic
*mako
(inherited)
←
Proto-Finnic
*maku
(inherited)
←
Proto-Germanic
*magô
(derived)
←
Votic
mako
(cognate)
→
Estonian
magus
(suffix)