in combinations, "having a (specified) number of decks," originally of vessels, 1795, from deck (n.). Later of stacked sandwiches.
they rode in a double-decker bus
decipherable
decision
decisive
decivilize
deck
decker
deck-hand
deckle
declaim
declamation
declamatory
)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}