follow Dictionary.com

Is irregardless a word?

underpinning

[uhn-der-pin-ing] /ˈʌn dərˌpɪn ɪŋ/
noun
1.
a system of supports beneath a wall or the like.
2.
Often, underpinnings. a foundation or basis:
to uncover the emotional underpinnings of an illness.
3.
underpinnings, Informal.
  1. underwear, especially women's underwear.
  2. the legs.
Origin of underpinning
1480-1490
1480-90; under + pin + -ing1

underpin

[uhn-der-pin] /ˌʌn dərˈpɪn/
verb (used with object), underpinned, underpinning.
1.
to prop up or support from below; strengthen, as by reinforcing a foundation.
2.
to replace or strengthen the foundation of (a building or the like).
3.
to furnish a foundation for; corroborate:
The author's conclusions are underpinned by references to experimental findings.
Origin
1515-25; under- + pin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for underpinning
Contemporary Examples
Historical Examples
British Dictionary definitions for underpinning

underpinning

/ˈʌndəˌpɪnɪŋ/
noun
1.
a structure of masonry, concrete, etc, placed beneath a wall to provide support

underpin

/ˌʌndəˈpɪn/
verb (transitive) -pins, -pinning, -pinned
1.
to support from beneath, esp by a prop, while avoiding damaging or weakening the superstructure: to underpin a wall
2.
to give corroboration, strength, or support to
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
Cite This Source
Word Origin and History for underpinning
n.

late 15c., "action of supporting or strengthening from beneath," from under + present participle of pin (v.). Figurative sense of "prop, support" is recorded from 1580s.

underpin

v.

1520s (figurative); 1530s (literal), from under + pin (v.). Related: Underpinned; underpinning.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for underpinning

Few English speakers likely know this word

Word Value for underpinning

16
23
Scrabble Words With Friends