Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*ludъ
→
Bulgarian
луд
(inherited)
→
Lithuanian
liūdnas
(cognate)
→
Macedonian
луд
(inherited)
→
Serbo-Croatian
lud
(inherited)
→
Serbo-Croatian
луд
(inherited)