Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
hun
←
Proto-Brythonic
*hʉn
(inherited)
←
Proto-Celtic
*sounos
(inherited)
←
Welsh
huno
(link)
←
Welsh
hunan
(link)
←
Proto-Indo-European
*swépnos
(inherited)
→
Welsh
huno
(affix)
→
Welsh
cyntun
(prefix)