composure

Calmness of mind or temperament.

That all may see who hate us, how we seek Peace and composure […]

It would be also of great Use to us to form our deliberate Judgments of Persons and Things in the calmest and serenest Hours of Life, when the Passions of Nature are all silent, and the Mind enjoys its most perfect Composure […]

The act of composing

1818, John Evelyn, Memoirs, edited by William Bray, London: Henry Colburn, 2nd edition, Volume I, entry for 10 March, 1685, p. 592, […] Signʳ Pietro […] had an admirable way both of composure [in music] and teaching.

Something which is composed; a composition.

Orderly adjustment; disposition.

[…] from the various Composures and Combinations of these Corpusoles together, happen all the Varieties of the Bodies formed out of them […]

Frame; make; temperament.

[…] his composure must be rare indeed Whom these things can not blemish […]