Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
reação
←
French
réaction
(derived)
←
Latin
reactio
(derived)
←
Latin
reago
(mention)
←
Latin
re-
(mention)
←
Latin
ago
(mention)