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