Effectual prayer

Easton’s Bible Dictionary & Webster’s 1828 Dictionary · Matthew George Easton, Noah Webster

Effectual prayer - (Easton's Bible Dictionary)

Occurs in Authorized Version, James 5:16. The Revised Version renders appropriately: "The supplication of a righteous man availeth much in its working", i.e., "it moves the hand of Him who moves the world."

Source of the article

Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)

Bible Strong combined digital edition