Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*klętva
→
Czech
kletba
(inherited)
→
Old Church Slavonic
клѧтва
(inherited)
→
Macedonian
клетва
(inherited)
→
Polish
klątwa
(inherited)
→
Russian
клятва
(inherited)