Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
fuinn
←
Scottish Gaelic
fuin
(cognate)
←
Middle Irish
fuinid
(inherited)
←
Old Irish
fo·noí
(inherited)
→
Scottish Gaelic
fuin
(cognate)