Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
costumar
←
Portuguese
costume
(suffix)
←
Portuguese
ar
(suffix)
←
Old Portuguese
costumar
(mention)
←
Old Portuguese
custumar
(mention)
→
Portuguese
costume
(link)