swear

[ swair ]
/ swɛər /

verb (used without object), swore or (Archaic) sware; sworn; swear·ing.

verb (used with object), swore or (Archaic) sware; sworn; swear·ing.

Verb Phrases

Origin of swear

before 900; Middle English sweren, Old English swerian; cognate with German schwören, Old Norse sverja; akin to Gothic swaran to swear; see answer
Related formsswear·er, nounswear·ing·ly, adverbre·swear, verb, re·swore, re·sworn, re·swear·ing.un·der·swear·er, noun

Synonym study

4. See curse.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for swear by

swear

/ (swɛə) /

verb swears, swearing, swore or sworn


noun

a period of swearing
Derived Formsswearer, noun

Word Origin for swear

Old English swerian; related to Old Norse sverja, Gothic swaran, Old Frisian swera, German schwören
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

Idioms and Phrases with swear by

swear by

1

Have great reliance on or confidence in, as in She swears by her personal physician. [Early 1800s]


2

Also, swear to. Have reliable knowledge of, be sure of, as in I think she was going to the library but I can't swear to it. [Mid-1700s]

3

Take an oath by, as in I swear by all the saints in heaven. [Early 1200s]

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