proof

Definition

An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.

Etymology

From Middle English proof, from Old French prove, from Late Latin proba (“a proof”), from Latin probō (“to prove”); see prove; compare also the doublet probe.

Example Sentences

• "I need proof of your unconditional love. Lend me some dough."
• "1591, Edmund Spenser, Prosopopoia: or, Mother Hubbard's Tale, later also published in William Michael Rossetti, Humorous Poems, But the false Fox most kindly played his part, For whatsoever mother-wit or art Could work he put in proof. No practice sly, No counterpoint of cunning policy, No reach, no breach, that might him profit bring. But he the same did to his purpose wring."
• "France I more praise and love; you are, my lord, Yourself for horsemanship much famed; and there You shall have many proofs to shew your skill."

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