Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
плу̏та
→
Bulgarian
плута
(mention)
→
Macedonian
плута
(mention)
→
Serbo-Croatian
плутача
(mention)