Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
стоуденъ
←
Proto-Slavic
*studenъ
(inherited)
→
Romanian
Studena
(mention)
→
Romanian
Studina
(mention)