Definition of "dismission"

Though Mrs Honour was principally attached to her own interest, she was not without some little attachment to Sophia. […] She no sooner therefore heard a piece of news, which she imagined to be of great importance to her mistress, than, quite forgetting the anger which she had conceived two days before, at her unpleasant dismission from Sophia’s presence, she ran hastily to inform her of the news.

1749, Henry Fielding, The History of Tom Jones, a Foundling, volumes (please specify |volume=I to VI), London: A[ndrew] Millar, […]

I told her […] that her dismission was intended for an indignity to me; that I was very sorry to be obliged to part with her, and hoped she would meet with as good a service.

1748, [Samuel Richardson], “Letter XXIII”, in Clarissa. Or, The History of a Young Lady: […], volumes (please specify |volume=I to VII), London: […] S[amuel] Richardson; […]

Fairservice looked very blank at this demand, justly considering it as a presage to approaching dismission.

1817, Walter Scott, Rob Roy

[…] and if, upon finding his hopes with regard to Rosilia frustrated, she should be so fortunate as once again to bring him to renew his addresses to herself, how great would be her triumph in then giving him his final dismission.

1838, [Letitia Elizabeth] Landon (indicated as editor), chapter V, in Duty and Inclination: […], volume III, London: Henry Colburn, […], page 53