dis- Syllabification: (dis-)Definition of dis- prefix 1expressing negation:dislike disquiet 2denoting reversal or absence of an action or state:dishonor disintegrate denoting separation:discharge disengage denoting expulsion:disbar disinherit 3denoting removal of the thing specified:disbud dismember 4expressing completeness or intensification of an unpleasant or unattractive action:discombobulate disgruntledOrigin:from Latin, sometimes via Old French des-dis- in other Oxford dictionaries Definition of dis- in the British & World English dictionary