dupe (dūp, dyūp)
n.

1. An easily deceived person.
2. A person who functions as the tool of another person or power.

tr.v., duped, dup·ing, dupes.
To deceive (an unwary person). See synonyms at deceive.

[French, from Old French, probably alteration of huppe, hoopoe (from the bird's stupid appearance). See hoopoe.]

dupability dup'a·bil'i·ty n.
dupable dup'a·ble adj.
duper dup'er n.

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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