Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
egin
←
Old Irish
éicen
(inherited)
→
Manx
co-eginaght
(confix)
→
Manx
eiginagh
(affix)
→
Manx
shegin
(affix)