Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
pseudonymous
←
English
pseudonym
(suffix)
←
English
ous
(suffix)
→
English
pseudonym
(back-formation)
→
English
pseudonymously
(suffix)
→
English
pseudonymousness
(suffix)
→
English
polypseudonymous
(prefix)