[ uhn-der-gurd ]
/ ˌʌn dərˈgɜrd /
verb (used with object), un·der·gird·ed or un·der·girt, un·der·gird·ing.
to strengthen; secure, as by passing a rope or chain under and around: to undergird a top-heavy load.
to give fundamental support; provide with a sound or secure basis: ethics undergirded by faith.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for undergird
/ (ˌʌndəˈɡɜːd) /
verb -girds, -girding, -girded or -girt
(tr) to strengthen or reinforce by passing a rope, cable, or chain around the underside of (an object, load, etc)
Word Origin for undergird
C16: from under- + gird 1
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 undergird
Online Etymology Dictionary, © 2010 Douglas Harper