Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
Aveiro
←
Proto-Celtic
*adberos
(mention)
←
Latin
Alavarius
(mention)
←
Latin
Averius
(mention)
←
Portuguese
Aveiras
(mention)
→
Portuguese
aveirense
(suffix)