Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
ad
→
Welsh
adlaw
(prefix)
→
Welsh
adlaw
(prefix)
→
Welsh
adran
(prefix)
→
Welsh
perfformiad
(suffix)
→
Welsh
adref
(prefix)
→
Welsh
ymdeimlad
(suffix)
→
Welsh
gleuaden
(suffix)