# undergird

> English word · Verb

## Definitions
1. To strengthen, secure, or reinforce by passing a rope, cable, or chain around the underside of an object.
2. To give fundamental support; provide with a sound or secure basis; provide supportive evidence for.
3. To lend moral support to.
4. To secure below or underneath.

## Etymology
From under- + gird.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/undergird