Residue - Vine's Expository Dictionary of New Testament Words
Residue
[ 1,,G2645, kataloipos ]an adjective denoting left remaining" (kata, "after, behind," leipo, "to leave"), akin to the verb in the Note above, is translated "residue" in Acts 15:17, from the Sept. of Amos 9:12.
Note: In Mark 16:13, AV, the plural of loipos, "left," is translated "residue" (RV, "rest").