Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
ach
→
Middle Irish
Bretnach
(suffix)
→
Middle Irish
cáelach
(suffix)
→
Middle Irish
botach
(suffix)
→
Middle Irish
adarcach
(suffix)
→
Middle Irish
fásach
(suffix)
→
Middle Irish
gúalach
(suffix)
→
Middle Irish
ingenach
(suffix)
→
Middle Irish
gríanach
(suffix)