Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
giarrey
←
Irish
gearradh
(cognate)
←
Old Irish
gerrad
(inherited)
→
Manx
so-yiarrey
(prefix)
→
Manx
yn-yiarrey
(prefix)
→
Manx
co-yiarrey
(prefix)