Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
лук
←
Old Church Slavonic
лѫкъ
(cognate)
←
Polish
łęk
(cognate)
←
Proto-Slavic
*lǫkъ
(inherited)