Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Northern Sami
oapmi
←
Proto-Samic
*oamē
(inherited)
→
Estonian
oma
(cognate)
→
Finnish
oma
(cognate)