Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
поустꙑни
←
Old Church Slavonic
поустъ
(suffix)
←
Old Church Slavonic
ꙑни
(suffix)
←
Proto-Slavic
*pustyni
(inherited)
→
Old Church Slavonic
поустиньникъ
(suffix)
→
Romanian
pustnic
(suffix)