Blot

a stain or reproach (Job 31:7; Prov. 9:7). To blot out sin is to forgive it (Ps. 51:1, 9; Isa. 44:22; Acts 3:19). Christ's blotting out the handwriting of ordinances was his fulfilling the law in our behalf (Col. 2:14).

Source: Easton’s Bible Dictionary (M.G. Easton, 1897, public domain).