Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*roďьstvo
→
Old Church Slavonic
рождьство
(inherited)
→
Russian
Рождество
(derived)
→
Russian
рожство
(inherited)
→
Russian
рожество
(inherited)
→
Serbo-Croatian
Рождество
(derived)
→
Ukrainian
Різдво
(inherited)