Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
osteni
←
Proto-Slavic
*ustati
(mention)
→
Romanian
ostenit
(mention)
→
Romanian
osteneală
(suffix)
→
Romanian
ostenitor
(suffix)