Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ushag
←
Irish
fuiseog
(cognate)
←
Scottish Gaelic
uiseag
(cognate)
←
Middle Irish
uiseóg
(inherited)
→
Irish
fuiseog
(cognate)
→
Scottish Gaelic
uiseag
(cognate)
→
Manx
ushagoil
(suffix)