Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Welsh
arch
←
Proto-Celtic
*ɸarsketi
(inherited)
←
Proto-Indo-European
*preḱ-
(inherited)
←
Middle Welsh
erchi
(mention)
→
Welsh
arch
(inherited)