Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
niknuti
←
Proto-Slavic
*niknǫti
(inherited)
→
Russian
никнуть
(cognate)
→
Serbo-Croatian
proniknuti
(prefix)