de-

prefix

1》 (forming verbs and their derivatives) down; away: descend|deduct.

    ↘completely: denude.

2》 (added to verbs and their derivatives) denoting removal or reversal: de-ice.

3》 denoting formation from: deverbal.

Origin

from L. de 'off, from'; sense 2 via OFr. des- from L. dis-.