Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
калъ
→
Romanian
Calna
(affix)
→
Romanian
Calnic
(affix)
→
Romanian
Câlnic
(affix)