\Dis-\ (?; 258)
.
1. A prefix from the Latin, whence F. d['e]s, or sometimes
   d['e]-, dis-. The Latin dis-appears as di-before b, d, g,
   l, m, n, r, v, becomes dif-before f, and either dis-or di-
   before j. It is from the same root as bis twice, and duo,
   E. two. See {Two}, and cf. {Bi-}, {Di-}, {Dia-}.
   Dis-denotes separation, a parting from, as in distribute,
   disconnect; hence it often has the force of a privative
   and negative, as in disarm, disoblige, disagree. Also
   intensive, as in dissever.
Note: Walker's rule of pronouncing this prefix is, that the s
      ought always to be pronounced like z, when the next
      syllable is accented and begins with ``a flat mute [b,
      d, v, g, z], a liquid [l, m, n, r], or a vowel; as,
      disable, disease, disorder, disuse, disband, disdain,
      disgrace, disvalue, disjoin, dislike, dislodge, dismay,
      dismember, dismiss, dismount, disnatured, disrank,
      disrelish, disrobe.'' Dr. Webster's example in
      disapproving of Walker's rule and pronouncing dis-as
      diz in only one (disease) of the above words, is
      followed by recent ortho["e]pists. See {Disable},
      {Disgrace}, and the other words, beginning with dis-,
      in this Dictionary.
2. A prefix from Gr. di`s- twice. See {Di-}.

\Dis\, n. [L.]
The god Pluto. --Shak.