Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
brèagha
←
Proto-Celtic
*brixs
(derived)
←
Irish
breá
(cognate)
←
Irish
breagha
(mention)
←
Irish
breaghdha
(mention)
←
Scottish Gaelic
brìgh
(mention)
←
Middle Irish
breaghdha
(inherited)
←
Old Irish
bregda
(inherited)
←
Old Irish
Brega
(inherited)
←
Old Irish
brí
(derived)
→
Scottish Gaelic
brèaghachd
(suffix)