Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
barrantagh
←
Manx
-agh
(affix)
←
Middle Irish
baránta
(derived)
←
Middle Irish
barántacht
(cognate)
→
Manx
neuvarrantagh
(affix)