Origin of thwart

1200–50; Middle English thwert (adv.) < Old Norse thvert across, neuter of thverr transverse; cognate with Old English thweorh crooked, cross, Gothic thwairhs cross, angry
Related formsthwart·ed·ly, adverbthwart·er, nounun·thwart·ed, adjectiveun·thwart·ing, adjective

Synonyms for thwart

1. hinder, obstruct. Thwart, frustrate, baffle imply preventing one, more or less completely, from accomplishing a purpose. Thwart and frustrate apply to purposes, actions, plans, etc., baffle, to the psychological state of the person thwarted. Thwart suggests stopping one by opposing, blocking, or in some way running counter to one's efforts. Frustrate implies rendering all attempts or efforts useless or ineffectual, so that nothing ever comes of them. Baffle suggests causing defeat by confusing, puzzling, or perplexing, so that a situation seems too hard a problem to understand or solve.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for thwart


British Dictionary definitions for thwart

thwart

verb

to oppose successfully or prevent; frustratethey thwarted the plan
obsolete to be or move across

noun

nautical a seat lying across a boat and occupied by an oarsman

adjective

passing or being situated across
archaic perverse or stubborn

preposition, adverb

obsolete across
Derived Formsthwartedly, adverbthwarter, noun

Word Origin for thwart

C13: from Old Norse thvert, from thverr transverse; related to Old English thweorh crooked, Old High German twerh transverse
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 thwart
adv.

c.1200, from Old Norse þvert "across," originally neuter of thverr (adj.) "transverse, across," cognate with Old English þweorh "transverse, perverse, angry, cross," from Proto-Germanic *thwerkhaz (cf. Middle Dutch dwers, Dutch dwars "cross-grained, contrary," Old High German twerh, German quer, Gothic þwairhs "angry"), altered (by influence of *thwer- "to turn") from *therkh-, from PIE *twork-/*twerk- "twist" (cf. Latin torquere "to twist," Sanskrit tarkuh "spindle," Old Church Slavonic traku "band, girdle," Old High German drahsil "turner," German drechseln "to turn on a lathe").

v.

"oppose, hinder," mid-13c., from thwart (adv.). Related: Thwarted; thwarting.

Online Etymology Dictionary, © 2010 Douglas Harper