a representation of a colloquial pronunciation of "(I) don't know," 1842, American English.
dungeon
dunghill
dunk
Dunker
Dunkirk
dunno
duo
duodecimal
duodecimo
duodenal
duodenary
)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}