A lot vs. Alot: 9 Grammatical Pitfalls
mid-14c., "to obliterate," from Old French desfacier "mutilate, destroy, disfigure," from des- "away from" (see dis-) + Vulgar Latin *facia (see face (n.)). Weaker sense of "to mar, make ugly" is late 14c. in English. Related: Defaced; defacing.