Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
grìos
←
Irish
gríos
(cognate)
←
Middle Irish
grís
(inherited)
→
Irish
gríos
(cognate)
→
Scottish Gaelic
grìosaich
(suffix)
→
Manx
grees
(cognate)