Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*loky
→
Old Church Slavonic
локꙑ
(inherited)
→
Macedonian
локва
(inherited)
→
Serbo-Croatian
lokva
(inherited)
→
Serbo-Croatian
локва
(inherited)