Definition of de- in English:

de-

prefix

  • 1(forming verbs and their derivatives) down; away.

    ‘descend’
    ‘deduct’
    1. 1.1 Completely.
      ‘denude’
      ‘derelict’
  • 2(added to verbs and their derivatives) denoting removal or reversal.

    ‘deaerate’
    ‘de-ice’
  • 3Denoting formation from.

    ‘deverbal’

Origin

From Latin de ‘off, from’; de- (sense 2) via Old French des- from Latin dis-.

Pronunciation

de-

/di//diː/