exhort

v. (often foll. By to + infin.) Urge strongly or earnestly.  exhortation n. Exhortative adj. Exhortatory adj. [latin exhortor encourage]

v. t. To incite by words or advice; to animate or urge by arguments, as to a good deed or laudable conduct; to address exhortation to; to urge strongly; hence, to advise, warn, or caution.