|Noah Webster's Dictionary|
(imp. & p. p.) of Slacken.
Slacked (2 Occurrences)
Psalms 77:2 In the day of my trouble I sought the Lord: My hand was stretched out in the night, and slacked not; My soul refused to be comforted. (ASV DBY)
Habakkuk 1:4 Therefore the law is slacked, and judgment doth never go forth: for the wicked doth compass about the righteous; therefore wrong judgment proceedeth. (KJV JPS ASV RSV)