What does vouchsafe mean?
Vouchsafe is an unusual word with both verbal and adjectival uses. As a verb, it means to guarantee, warrant, or answer for another person, an institution, or a statement: in older writing, someone might vouchsafe the safety of a prisoner or vouchsafe that a report is true. As an adjective, vouchsafe means safe or secure, often in elevated or archaic constructions such as “the castle remained vouchsafe.” The word combines vouch, meaning to give assurance, with safe, emphasizing protection or certainty. Today it is rarely needed in ordinary conversation, but it survives in legal, historical, and literary contexts. Its unusual form and strong sense of personal or formal assurance make it memorable. Modern speakers will usually choose guarantee, assure, warrant, or certify, depending on the intended meaning.
To guarantee or answer for someone or something; also, in older usage, to affirm or warrant something.
"The witness agreed to vouchsafe the defendant's conduct before the court."
Chiefly archaic, formal, or literary; often transitive, with the person or thing being guaranteed as the object.
Safe or secure; free from danger or risk.
"The old harbour remained vouchsafe despite the approaching storm."
Archaic and literary in modern English, and typically used predicatively or in formal constructions.
Once a forceful promise of protection, vouchsafe now sounds like a relic of chivalric vows and old legal language.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of vouchsafe
Vouchsafe is an English compound formed from vouch and safe. Vouch came through Old French from Latin vadere, while safe came through Old French from Latin salvus, meaning “safe” or “secure.” The compound developed in Early Modern English and was used both as a verb meaning to guarantee or answer for and as an adjective meaning safe or secure.
Related word forms
How vouchsafe is actually used
The word is chiefly archaic, formal, or literary. Its older verb uses can suggest a personal guarantee or legal responsibility, while the adjective is especially associated with elevated or historical prose.
Easily confused with vouchsafe
Vouch generally means to give assurance or support, whereas vouchsafe specifically means to guarantee or answer for someone or something.