Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
crannóc
←
Middle Irish
crann
(affix)
←
Middle Irish
-óc
(affix)
→
English
crannog
(derived)
→
Portuguese
crannog
(derived)