rearguard

or rear-guard

[ reer-gahrd ]
/ ˈrɪərˌgɑrd /
|

adjective

of or relating to a rear guard.
designed to oppose or prevent in a defensive way: a rearguard strategy.

Origin of rearguard

First recorded in 1895–1900; attributive use of rear guard
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rearguard

British Dictionary definitions for rearguard

rearguard

/ (ˈrɪəˌɡɑːd) /

noun

a detachment detailed to protect the rear of a military formation, esp in retreat
an entrenched or conservative element, as in a political party
rearguard action
  1. an action fought by a rearguard
  2. a defensive action undertaken to try to stop something happening or continuing

Word Origin for rearguard

C15: from Old French rereguarde (modern French arrière-garde), from rer, from Latin retro back + guarde guard; compare vanguard
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