Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
cruinney
→
Manx
ard-chruinnaght
(confix)
→
Manx
co-chruinnagh
(affix)
→
Manx
co-chruinnoid
(confix)
→
Manx
co-chruinnys
(confix)