De- ::
De- () A
prefix from Latin de down, from, away; 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..