Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
regueira
←
English
ditch
(link)
←
Portuguese
rego
(affix)
←
Portuguese
-eira
(affix)
←
Portuguese
regueiro
(link)