Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
raus
←
French
roseau
(cognate)
←
Proto-Germanic
*rausą
(derived)
←
Proto-Germanic
*rauzą
(mention)
←
Proto-Indo-European
*er-
(derived)
→
Occitan
rausèl
(affix)
→
Occitan
rauset
(affix)