Definition of "admonitory"

Wherefore the naturall measure wherby to iudge our doings, is the sentence of reason, determining and setting downe what is good to be done. Which sentence is either mandatory, shewing what must be done; or else permissiue, declaring onely what may be done; or thirdly admonitorie, opening what is the most conuenient for vs to doe.

1594, Richard Hooker, edited by J[ohn] S[penser], Of the Lawes of Ecclesiastical Politie, […], 3rd edition, London: […] Will[iam] Stansby [for Matthew Lownes], published 1611, book II, page 64

Mere descriptions of virtue or vice do not strike us, so strongly, as the visible representations of them. Richard the Third’s dream, Lady Macbeth’s soliloquy in her sleep, the Dagger Scene in the same Play, Cardinal Beaufort’s last moments, with many other passages in our Author, of the same admonitory kind, avail us more than whole volumes of Tully’s Offices, or Seneca’s Morals.

1775, Elizabeth Griffith, The Morality of Shakespeare’s Drama Illustrated‎, London: T. Cadell, A General Postscript, pp. 526-527

[…] Mr. Dick […] was so low-spirited at the prospect of our separation, and played so ill in consequence, that my aunt, after giving him several admonitory raps on the knuckles with her dice-box, shut up the board, and declined to play with him any more.

1849 May – 1850 November, Charles Dickens, chapter 15, in The Personal History of David Copperfield, London: Bradbury & Evans, […], published 1850

From it [the pew], Mrs. Venables was able […] to keep an admonitory eye on the school children who occupied the north aisle, and to frown at those who turned round to stare or make faces.

1934, Dorothy L. Sayers, “II. A Full Peal of Grandsire Tripes”, in The Nine Tailors‎, London: Victor Gollancz, published 1975, The Second Part