Dis-

OXFORD DICTIONARY

Dis-, prefix forming nouns, adjectives, and verbs:
1 expressing negation (dishonest).
2 indicating reversal or absence of an action or state (disengage; disbelieve).
3 indicating removal of a thing or quality (dismember; disable).
4 indicating separation (distinguish; dispose).
5 indicating completeness or intensification of the action (disembowel; disgruntled).
6 indicating expulsion from (disbar).

Etymology

L dis-, sometimes through OF des-