Bolster

Etymology
Akin to Old Norse bólstr: ( > Danish bolster), German Polster:, polstern:.

Noun

 * 1) A large cushion or pillow.

Synonyms

 * dutch wife

Verb

 * 1) To brace, reinforce, secure, or support.

Thesaurus
advance, affirm, afford support, aid, air mattress, assist, assure, attest, authenticate, back, back up, bear, bear out, bear up, bedding, bolster up, brace, brace up, buck up, buoy up, buttress, carry, certify, cheer, circumstantiate, confirm, corroborate, cradle, crutch, cushion, document, embolden, encourage, finance, fortify, fund, further, give support, hearten, help, hold, hold up, innerspring mattress, inspire, inspirit, keep, keep afloat, keep up, lend support, litter, mainstay, maintain, mat, mattress, nerve, pad, pallet, pillow, probate, prop, prop up, prove, ratify, reassure, reinforce, rug, shore, shore up, shoulder, sleeping bag, springs, stay, strengthen, subsidize, substantiate, subvention, subventionize, support, sustain, underbed, underbedding, underbrace, undergird, underlie, underpin, underset, upbear, uphold, upkeep, validate, verify, warrant