Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
jarrood
←
Old Irish
dermat
(inherited)
→
Manx
neuyarroodagh
(affix)
→
Manx
neuyarroodys
(affix)
→
Manx
jarroodagh
(affix)