Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Macedonian
петел
←
Proto-Slavic
*pětьlъ
(inherited)
←
Proto-Slavic
*pěti
(mention)
→
Russian
петух
(cognate)