Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
firriney
←
Old Irish
fírinne
(inherited)
→
Manx
firrinagh
(affix)
→
Manx
firrinys
(suffix)
→
Manx
neufirrinys
(affix)
→
Manx
neufirrinid
(affix)