Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
wągier
←
Proto-Slavic
*ǫgrъ
(inherited)
→
Bulgarian
въгарец
(cognate)
→
Czech
uher
(cognate)