1 reprove.
2 (foll. by to + infin., or that + clause) urge.
3 give advice to.
4 (foll. by of) warn.
Derivatives:
admonishment n. admonition n. admonitory adj.
Etymology: ME f. OF amonester ult. f. L admonere (as AD-, monere monit- warn)
Useful english dictionary. 2012.