The Collaborative International Dictionary of English v.0.48:

Dis \Dis\, prop. n. [L.]
   The god Pluto, god of the underworld; also called Dis
   Pater. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

dis \dis\ v. t. [shortened from disrespect.] [imp. & p. p.
   dissed; p. pr. & vb. n. dissing.]
   to treat in a disrespectful manner; to insult, disparage or
   belittle. [slang]
   [PJC]

The Collaborative International Dictionary of English v.0.48:

dis- \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.
      [1913 Webster]

   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.
         [1913 Webster]

   2. A prefix from Gr. di`s- twice. See Di-.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Dis
    n 1: god of the underworld; counterpart of Greek Pluto [syn:
         Dis, Orcus]

Moby Thesaurus II by Grady Ward, 1.0:

82 Moby Thesaurus words for "Dis":
   Agdistis, Aides, Aidoneus, Amor, Aphrodite, Apollo, Apollon, Ares,
   Artemis, Ate, Athena, Bacchus, Cerberus, Ceres, Charon, Cora,
   Cronus, Cupid, Cybele, Demeter, Despoina, Diana, Dionysus,
   Dis pater, Erebus, Eros, Gaea, Gaia, Ge, Great Mother, Hades, Hel,
   Helios, Hephaestus, Hera, Here, Hermes, Hestia, Hymen, Hyperion,
   Jove, Juno, Jupiter, Jupiter Fidius, Jupiter Fulgur,
   Jupiter Optimus Maximus, Jupiter Pluvius, Jupiter Tonans, Kore,
   Kronos, Loki, Magna Mater, Mars, Mercury, Minerva, Minos, Mithras,
   Momus, Neptune, Nike, Olympians, Olympic gods, Ops, Orcus, Osiris,
   Persephassa, Persephone, Phoebus, Phoebus Apollo, Pluto, Poseidon,
   Proserpina, Proserpine, Rhadamanthus, Rhea, Satan, Saturn, Tellus,
   Venus, Vesta, Vulcan, Zeus



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

DIS
       Defense Information System (mil., USA)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

DIS
       Digital Identification Signal (HDLC)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

DIS
       Draft International Standard (ISO)


The Free On-line Dictionary of Computing (30 December 2018):

dis

    A CPython bytecode disassembler.

   dis home (https://docs.python.org/2/library/dis.html).

   (2014-06-08)