Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
schimb
←
Romanian
schimba
(back-formation)
→
Picard
canger
(cognate)
→
Romanian
liber-schimbism
(suffix)
→
Romanian
liber-schimbist
(affix)