Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Lushootseed
-du-
→
Lushootseed
ʔəq̓ʷdub
(affix)
→
Lushootseed
ʔitutdubut
(affix)
→
Lushootseed
ʔix̌dub
(affix)