Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
riscar
←
Latin
resecare
(mention)
→
Kabuverdianu
riska
(derived)
→
Guinea-Bissau Creole
riska
(derived)
→
Portuguese
risco
(back-formation)