Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
meshtey
←
Proto-Celtic
*miskos
(derived)
←
Irish
meisce
(cognate)
←
Proto-Indo-European
*meyḱ-
(derived)
←
Old Irish
mescae
(inherited)
→
Manx
meshtoil
(suffix)
→
Manx
so-vestaght
(confix)
→
Manx
so-vestey
(prefix)