abbreviation of no good, attested from 1838; variant n.b.g. for no bloody good is by 1903.
mythopoeic
myxo-
N
n.b.
N.E.D.
n.g.
Na
NAACP
Naaman
nab
Nabataean
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}