Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
dubae
←
Old Irish
dub
(suffix)
←
Old Irish
e
(suffix)
→
Irish
dubha
(inherited)
→
Old Irish
dubach
(suffix)