Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*kъmotrъ
→
Lower Sorbian
kmótš
(inherited)
→
Serbo-Croatian
kum
(mention)
→
Serbo-Croatian
кум
(mention)
→
Slovak
kmotor
(inherited)