Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
сѣщи
←
Proto-Indo-European
*sek-
(derived)
←
Proto-Slavic
*sěťi
(inherited)
→
Old Church Slavonic
исѣщи
(link)
→
Latin
seco
(cognate)
→
Russian
сектор
(cognate)