Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
voish
←
Manx
veih
(mention)
←
Middle Irish
ó
(inherited)
←
Old Irish
úa
(inherited)
→
Scottish Gaelic
bho
(cognate)
→
Scottish Gaelic
uaithe
(cognate)
→
Middle Irish
ó
(link)