Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*kъlъ
→
Czech
kel
(inherited)
→
Polish
kieł
(inherited)
→
Romanian
gligan
(derived)
→
Slovak
kel
(inherited)
→
Old Czech
kel
(inherited)