Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
brith
←
Proto-Brythonic
*briθ
(inherited)
←
Proto-Celtic
*mrixtos
(inherited)
→
English
brait
(cognate)
→
English
bara brith
(mention)
→
Welsh
brithyll
(suffix)