Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
joarreeaght
←
Irish
deoraíocht
(cognate)
←
Manx
-aght
(affix)
←
Old Irish
deoraidecht
(inherited)
←
Old Irish
deorad
(mention)