COMPURGATION
Etymology
Noun
compurgation (countable and uncountable, plural compurgations)
(now chiefly historical) Acquitting someone from a formal charge or accusation following the sworn oaths of a number of other people; vindication.
Source: Wiktionary
Com`pur*ga"tion, n. Etym: [L. compurgatio, fr. compurgare to purify
wholly; com- + purgare to make pure. See Purge, v. t.]
1. (Law)
Definition: The act or practice of justifying or confirming a man's
veracity by the oath of others; -- called also wager of law. See
Purgation; also Wager of law, under Wager.
2. Exculpation by testimony to one's veracity or innocence.
He was privileged from his childhood from suspicion of incontinency
and needed no compurgation. Bp. Hacket.
Source: Webster’s Unabridged Dictionary 1913 Edition