Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
brincar
→
Kabuverdianu
brinka
(derived)
→
Guinea-Bissau Creole
brinka
(derived)
→
Portuguese
brinco
(back-formation)
→
Portuguese
brincadeira
(suffix)
→
Portuguese
brincalhão
(affix)