Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
cucūllus
→
Bulgarian
кукер
(cognate)
→
Catalan
cucurull
(derived)
→
Polish
koklusz
(derived)
→
Romanian
cuculă
(derived)