Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
-llyd
←
Welsh
llawn
(link)
→
Welsh
rhewllyd
(affix)
→
Welsh
dychrynllyd
(affix)
→
Welsh
creisionllyd
(affix)