Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
mordomo
←
Latin
māior
(derived)
←
Latin
domus
(mention)
←
Old Portuguese
moordomo
(derived)
←
Old Portuguese
mayordomo
(mention)
→
Galician
mordomo
(cognate)
→
Portuguese
mor
(link)