Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
loo
←
Old Irish
lugu
(inherited)
←
Old Irish
bec
(mention)
→
Manx
sloo
(compound)
→
Manx
s'loo
(compound)