dis

1. speak disrespectfully to or criticize.

   I don't like her dissing my friends

   a campaign of forum postings and emails dissing the company

   maybe you should stop dissing psychics and discover that part of yourself

noun

disrespectful talk.

1980s: abbreviation of disrespect.

1. expressing negation.

   disadvantage

   disbelieve

2. denoting reversal or absence of an action or state.

   diseconomy

   disaffirm

3. denoting removal of something.

   disbud

4. expressing completeness or intensification of an unpleasant or unattractive action.

   disgruntled

from Latin, sometimes via Old French des- .

1. (in the UK) Defence Intelligence.
2. (in the UK) Detective Inspector.
3. direct injection.
4. drill instructor.