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masturbate

[mas-ter-beyt]

verb (used without object), mas·tur·bat·ed, mas·tur·bat·ing.

to engage in masturbation.

verb (used with object), mas·tur·bat·ed, mas·tur·bat·ing.

to practice masturbation upon.

Origin of masturbate

1855–60; < Latin masturbātus, past participle of masturbārī to engage in masturbation
Related formsmas·tur·ba·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for masturbate

masturbate

verb

to stimulate the genital organs of (oneself or another) to achieve sexual pleasure
Derived Formsmasturbation, nounmasturbator, noun

Word Origin for masturbate

C19: from Latin masturbārī, of unknown origin; formerly thought to be derived from manus hand + stuprāre to defile
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 masturbate
v.

1839, back-formation from masturbation, or else from Latin masturbatus, past participle of masturbari. Related: Masturbated; masturbating.

Online Etymology Dictionary, © 2010 Douglas Harper
masturbate in Medicine

masturbate

[măs′tər-bāt′]

v.

To perform an act of masturbation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.