Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

late 14c., "disgrace, shame, want of honor," from Old French deshonesté (13c.) "dishonor, impropriety," from des- (see dis-) + Latin honestatem "honorableness" (see honesty). Meaning "want of honesty" is recorded from 1590s.