Jekyll and Hyde

[jek-uh l, jee-kuh l]

Origin of Jekyll and Hyde

after the protagonist of Robert Louis Stevenson's The Strange Case of Dr. Jekyll and Mr. Hyde (1886)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for jekyll and hyde

ambiguity, duplicity, proteus

British Dictionary definitions for jekyll and hyde

Jekyll and Hyde

noun
    1. a person with two distinct personalities, one good, the other evil
    2. (as modifier)a Jekyll-and-Hyde personality

Word Origin for Jekyll and Hyde

C19: after the principal character of Robert Louis Stevenson's novel The Strange Case of Dr Jekyll and Mr Hyde (1886)
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

Word Origin and History for jekyll and hyde

Jekyll and Hyde

in reference to opposite aspects of a person's character, from Robert Louis Stevenson's story, "The Strange Case of Dr. Jekyll and Mr. Hyde," published 1886. The surname Jekyll is of Breton origin and was originally a personal name.

"Though so profound a double-dealer, I was in no sense a hypocrite. Both sides of me were in dead earnest; I was no more myself when I laid aside restraint and plunged in shame, than when I labored, in the eye of day, at the furtherance of knowledge or the relief of sorrow and suffering." [Robert Louis Stevenson, "The Strange Case of Dr. Jekyll and Mr. Hyde," 1886]
Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with jekyll and hyde

Jekyll and Hyde

A personality alternating between good and evil behavior, as in You never know whether Bob will be a Jekyll or a Hyde. This expression comes from Robert Louis Stevenson's The Strange Case of Dr. Jekyll and Mr. Hyde (1886). Also see lead a double life.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.