Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ard-chummaght
←
Manx
ard
(prefix)
←
Manx
cummaght
(prefix)
→
Manx
ard-chummaghtagh
(affix)