Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
uaibh
←
Irish
uaibh
(cognate)
←
Manx
veue
(cognate)
←
Middle Irish
uadib
(inherited)
←
Old Irish
uaib
(inherited)