Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
пена
←
Proto-Indo-European
*(s)poH(y)-
(root)
←
Proto-Slavic
*pěna
(inherited)
→
Ossetian
фынк
(cognate)