Vouches

Part of speech: verb

Definitions

1. Offers a pledge that something is true or valid ; confirms the reliability or qualities of a person based on knowledge or experience
2. Acts as a guarantor or supporter by affirming the truth or authenticity of a claim ; gives evidence supporting someone's reputation or competence
3. Supports or endorses an assertion or fact by promising its accuracy ; bears witness to the character or skills of someone through personal confirmation

Etymology: Before it meant to guarantee something, this verb meant to call or summon. Its ancestor, Latin "vocāre," meant "to call," and Old French "vocher" kept that sense of summoning someone. Middle English "vouchen" carried a wider range of meanings, including to provide and to affirm formally. The most striking turn came in the law courts. Anglo-Norman and Old French speakers used "voucher a garant" for summoning a person into court to establish a warranty of title to land, and English borrowed this as a calque, "to vouch to warrant." Being called into court to back up a claim was close to being asked to stand behind it, which is near the modern sense of confirming someone's reliability. Other English words from the same Latin root include "vocation," "advocate," "invoke," and "vocal."