DEMORALIZE
demoralize
(verb) confuse or put into disorder; “the boss’s behavior demoralized everyone in the office”
depress, deject, cast down, get down, dismay, dispirit, demoralize, demoralise
(verb) lower someone’s spirits; make downhearted; “These news depressed her”; “The bad state of her child’s health demoralizes her”
corrupt, pervert, subvert, demoralize, demoralise, debauch, debase, profane, vitiate, deprave, misdirect
(verb) corrupt morally or by intemperance or sensuality; “debauch the young people with wine and women”; “Socrates was accused of corrupting young men”; “Do school counselors subvert young children?”; “corrupt the morals”
Source: WordNet® 3.1
Etymology
Verb
demoralize (third-person singular simple present demoralizes, present participle demoralizing, simple past and past participle demoralized)
(transitive, American spelling) To destroy the morale of; to dishearten.
Source: Wiktionary
De*mor"al*ize, v. t. [imp. & p. p. Demoralized; p. pr. & vb. n.
Demoralizing.] Etym: [F. démoraliser; pref. dé- (L. dis- or de) +
moraliser. See Moralize.]
Definition: To corrupt or undermine in morals; to destroy or lessen the
effect of moral principles on; to render corrupt or untrustworthy in
morals, in discipline, in courage, spirit, etc.; to weaken in spirit
or efficiency.
The demoralizing example of profligate power and prosperous crime.
Walsh.
The vices of the nobility had demoralized the army. Bancroft.
Source: Webster’s Unabridged Dictionary 1913 Edition