Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
sheer-ghlass
←
Irish
síorghlas
(cognate)
←
Manx
sheer
(prefix)
←
Manx
glass
(prefix)
→
Irish
síorghlas
(cognate)