Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
sollys
←
Irish
solas
(cognate)
←
Scottish Gaelic
solas
(cognate)
←
Old Irish
solus
(inherited)
→
Manx
ard-sollys
(prefix)
→
Manx
co-hollys rollageagh
(prefix)
→
Manx
rehollys
(compound)
→
Manx
aahollys
(prefix)