Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
сѫкъ
←
Bulgarian
съчка
(cognate)
←
Russian
сук
(cognate)
←
Proto-Slavic
*sǫ̑kъ
(inherited)
→
Old Armenian
ցանկ
(cognate)