Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
pwdr
←
Welsh
pydredig
(link)
←
Welsh
pydredd
(link)
←
Welsh
pydru
(link)
←
Latin
puter
(borrowed)
→
Welsh
pydru
(suffix)
→
Welsh
pydredd
(suffix)