Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
obstaculum
←
Latin
obstō
(suffix)
←
Latin
-culum
(suffix)
→
Portuguese
obstáculo
(borrowed)
→
Romanian
obstacol
(mention)