dis-
/dɪs/prefix
1Expressing negation: disadvantage disbelieve
2Denoting reversal or absence of an action or state: diseconomy disaffirm
3Denoting removal of something: disbud
3.1Denoting separation: discarnate
3.2Denoting expulsion: disbar
4Expressing completeness or intensification of an unpleasant or unattractive action: disgruntled
Origin
From Latin, sometimes via Old French des-.