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definitions

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. 2019

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