DE- n.
way; as in debark, decline, decease, deduct, decamp. In words from the French it is equivalent to Latin dis- apart, away; or sometimes to de. Cf. Dis-. It is negative and opposite in derange, deform, destroy, etc. It is intensive in deprave, despoil, declare, desolate, etc.
DEAL v.
tend (with); to treat (with), by way of opposition, check, or correction; as, he has turbulent passions to deal with. To deal by, to treat, either well or ill; as, to deal well by servants. "Such an one deals not fairly by his own mind." Locke. -- To deal in. (a) To have to do with; to be engaged in; to practice; as,…