Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ceartaigh
←
Irish
ceart
(affix)
←
Irish
-igh
(affix)
←
Manx
kiartee
(cognate)
→
Irish
fabhtcheartaigh
(affix)