Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
-yd
→
Welsh
iechyd
(affix)
→
Welsh
clefyd
(affix)
→
Welsh
celfyddyd
(affix)
→
Welsh
afiechyd
(affix)
→
Welsh
esmwythyd
(affix)