Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
corrach
←
Irish
corr#Etymology 1
(mention)
←
Middle Irish
corr
(affix)
←
Middle Irish
-ach
(affix)
→
Irish
corrach
(inherited)
→
Irish
corraigh
(derived)
→
Scottish Gaelic
caraich
(derived)