Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ingrian
kaheksas
←
Estonian
kaheksas
(cognate)
←
Finnish
kahdeksas
(cognate)
←
Proto-Finnic
*kakteksac
(inherited)