dup

[duhp]

verb (used with object), dupped, dup·ping. Archaic.

to open.

Origin of dup

1540–50; contraction of do¹ + up; cf. doff, don²

dup.

duplicate.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for dup

Historical Examples of dup

He wriggled round so that he faced forward, reached out gleefully, caught the front fetlocks, and cried "Dup!"
Flying U Ranch
B. M. Bower

British Dictionary definitions for dup

dup

verb dups, dupping or dupped

(tr) archaic, or dialect to open

Word Origin for dup

C16: contraction of do 1 + up

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012