Morpheme
de-
Type
prefix
Denotation
down, down from, from, off, off, away, from among; through, throughout, in different directions, between; negating prefix, often denoting completely, totally; also often merely intensive, denoting thoroughly, entirely
Etymology
(1) Latin de; (2) Old French de-, from des-; Latin dī-, from dis-
Evidence
deactivate, debark, debrief, debut, decay, deciduous, declutter, decompress, decrease, defenestrate, deflate, defrost, defy, deglutition, degradation, deligotype, deluge, denigrate, deplete, deprecate, depress, dereism, dereistic, derive, descend, despair, desparate, detach, device, devise
