Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
звек
←
Bulgarian
звук
(mention)
←
Old Church Slavonic
звѧкъ
(inherited)
←
Macedonian
ѕвек
(cognate)