Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
clefyd
←
Proto-Brythonic
*klėβ̃ɨd
(inherited)
←
Proto-Celtic
*klamitos
(inherited)
←
Welsh
claf
(affix)
←
Welsh
-yd
(affix)