הֶכְחֵישׁ, (כחש) contradiction, incongruity in details of legal evidence. Y. Yeb. XV, 15ᵃ bot. ה׳ עדות בתוך עדות an incongruity in the statements of witnesses concerning the details of the main fact to be ascertained; ה׳ עדות לאחר עדות concerning circumstances subsequent to the main fact.