1833, from sneak (v.) + -y (2). Related: Sneakily; sneakiness. Sneaky Pete "cheap liquor" is from 1949.
snazzy
SNCC
SNCF
sneak
sneaker
sneaky
sneer
sneeze
sneezy
snell
snick
)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}