Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*sъjьmъ
→
Macedonian
саем
(inherited)
→
Polish
Sejm
(mention)
→
Romanian
Seim
(derived)
→
Serbo-Croatian
sajam
(inherited)
→
Serbo-Croatian
сајам
(inherited)