D defs.my
Entry 1 sense Webster, 1913

Demoralize

/dĭm-ôr'-əl-īzˌ/ · De·mor·al·ize · IPA /dɪˈmɒɹəlaɪz/
01 v. t. To corrupt or undermine in morals; to destroy or lessen the effect of moral principles on; to render corrupt or untrustworthy in morals, in…
imp. & p. p. Demoralized; p. pr. & vb. n. Demoralizing
  1. 1.
    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.