Underwrite

Verb

 * 1)  To write (something) below something else.
 * 2)  To subscribe (a document, policy etc.) with one's name.
 * 3)  To sign; to put one's name to.
 * 4)  Specifically, to assume financial responsibility for something, and guarantee it against failure.
 * 5)  To act as an underwriter.
 * 6)  To support, lend support to, guarantee the basis of.

Derived terms

 * underwriter

Thesaurus
OK, accede to, accept, accredit, affirm, agree to, amen, approve, arm, armor, assure, attest, authenticate, authorize, autograph, avouch, back, back up, be sponsor for, bless, bond, certify, champion, cloak, compass about, confirm, consent to, copyright, cosign, countersecure, countersign, cover, cushion, defend, endorse, ensure, fence, fend, finance, give permission, give the go-ahead, give the imprimatur, give thumbs up, guarantee, guaranty, guard, harbor, haven, indorse, initial, insure, invest in, keep, keep from harm, make a promise, make safe, nestle, notarize, okay, pass, pass on, pass upon, patent, permit, pledge, plight, police, promise, protect, ratify, register, ride shotgun for, rubber stamp, safeguard, sanction, say amen to, screen, seal, second, secure, shelter, shield, shroud, sign, sign and seal, sign for, sponsor, stand behind, stand up for, subscribe to, subsidize, subvene, support, swear, swear and affirm, swear to, troth, undersign, uphold, validate, visa, vise, vouch, vow, warrant

Etymology
From under-: + write: (modelled on Latin subscribo:).

Translations

 * Dutch: onderschrijven
 * Finnish:


 * German:
 * Spanish: suscribir