Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Northern Sami
oahci
←
Proto-Samic
*oacē
(inherited)
→
Estonian
oda
(cognate)
→
Erzya
ош
(cognate)