Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
sonnys
←
Middle Irish
sonus
(inherited)
←
Old Irish
sona
(derived)
→
Manx
neuhonnyssagh
(affix)
→
Manx
sonnyssagh
(affix)