Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
junak
←
Proto-Slavic
*junъ
(derived)
←
Proto-Slavic
*-akъ
(mention)
→
Bulgarian
юнак
(cognate)
→
Macedonian
јунак
(cognate)
→
Serbo-Croatian
junak
(mention)
→
Serbo-Croatian
јунак
(mention)
→
Slovak
junák
(cognate)