Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ayroil
←
Manx
ayr
(suffix)
←
Manx
oil
(suffix)
←
Middle Irish
aithremail
(inherited)
←
Old Irish
athramail
(inherited)
→
Manx
ayroilid
(suffix)
→
Manx
ayroilys
(suffix)