Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
крачун
→
Hungarian
karácsony
(mention)
→
Serbo-Croatian
kračun
(cognate)
→
Serbo-Croatian
крачун
(cognate)