backstab

[ bak-stab ]
/ ˈbækˌstæb /

verb (used with object), back·stabbed, back·stab·bing.

to attempt to discredit (a person) by underhanded means, as innuendo, accusation, or the like.

Origin of backstab

First recorded in 1920–25; back2 + stab

OTHER WORDS FROM backstab

back·stab·ber, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for back-stabbing

back-stabbing

noun

actions or remarks that are treacherous and likely to cause harm to a person, esp a friend or colleague
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