Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
maih
←
Old Irish
maithid
(derived)
→
Manx
so-vaih
(prefix)
→
Manx
neuvaihagh
(affix)
→
Manx
maihagh
(affix)