Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
oighre
←
Irish
oidhre
(cognate)
←
Manx
eirey
(cognate)
←
Middle Irish
eigre
(inherited)
→
Irish
oidhre
(cognate)
→
Scottish Gaelic
ban-oighre
(prefix)
→
Manx
eirey
(cognate)