Mis-

Mis \Mis\ (m[i^]s), a. & adv. [See {Amiss}.]
   Wrong; amiss. [Obs.] "To correcten that [which] is mis."
   --Chaucer.
   [1913 Webster]
    

Mis- \Mis-\ (m[i^]s-). [In words of Teutonic origin, fr. AS.
   mis-; akin to D. mis-, G. miss-, OHG. missa-, missi-, Icel. &
   Dan. mis-, Sw. miss-, Goth. missa-; orig., a p. p. from the
   root of G. meiden to shun, OHG. m[imac]dan, AS.
   m[imac][eth]an ([root]100. Cf. {Miss} to fail of). In words
   from the French, fr. OF. mes-, F. m['e]-, mes-, fr. L. minus
   less (see {Minus}). In present usage these two prefixes are
   commonly confounded.]
   A prefix used adjectively and adverbially in the sense of
   amiss, wrong, ill, wrongly, unsuitably; as, misdeed, mislead,
   mischief, miscreant.
   [1913 Webster]
    

MIS
       Mega Iterations per Second
       
    

MIS
       Management Information System
       
    

MIS. A syllable which prefixed to some word signifies some fault or defect; 
as, misadventure, misprision, mistrial, and the like.