Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
aval
←
Proto-Brythonic
*aβal
(inherited)
←
Proto-Celtic
*abalom
(inherited)
←
Proto-Indo-European
*h₂ébōl
(inherited)
→
Breton
avaloù
(suffix)