To persuade somebody not to do (something).
To extinguish the courage of; to dishearten; to depress the spirits of; to deprive of confidence; to deject.
Lack of courage
To notify or inform (someone, about something).
To caution or admonish (someone) against unwise or unacceptable behaviour.
To give warning.
To summon (someone) to or inform of a formal meeting or duty.
To advise or order to go or stay away.
To make (someone) aware of impending danger, evil, etc.