[f. ADMONISH + -ER1.] One who admonishes or gives authoritative advice; a monitor.
1570. T. Wilson, in Ascham, Scholem. (Arb.), Pref. 7. Your good admonisher, and teacher in your yonger yeares.
1617. Hieron, Wks., II. 113. [What] a blessing to haue such a faithfull admonisher in ones bosome.
1840. Browning, Sordello, V. 411. Courteously He turned then, even seeming to agree With his admonisher.