admonitor

Etymology
From.

Noun

 * 1) An admonisher; a monitor.
 * 2) * 1764,, Essays on Men, Manners, and Things in The Works in Verse and Prose of William Shenstone, London: R. & J. Dodsley, Volume 2, p. 307,
 * Conscience is at most times a very faithful and a very prudent admonitor.
 * 1) * 1764,, Essays on Men, Manners, and Things in The Works in Verse and Prose of William Shenstone, London: R. & J. Dodsley, Volume 2, p. 307,
 * Conscience is at most times a very faithful and a very prudent admonitor.

Noun

 * 1) an admonisher, exhorter

Noun

 * 1) ; admonisher someone who admonishes

Adjective

 * 1)  admonitive conveying admonition