Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
легоба
←
Bulgarian
-оба
(affix)
←
Old Church Slavonic
льгоба
(mention)
←
Russian
облегчение
(cognate)
←
Slovene
ləgóta
(cognate)
←
Proto-Slavic
*lьgъ
(derived)