Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
foshil
←
Irish
foscail
(cognate)
←
Irish
oscail
(mention)
←
Scottish Gaelic
fosgail
(cognate)
←
Middle Irish
osclaid
(inherited)
←
Old Irish
oslaicid
(inherited)
→
Scottish Gaelic
fosgail
(cognate)
→
Manx
aa-oshil
(prefix)