Definition of "discomposure"

And now it was that I began to keep a journal of every day's employment; for, indeed, at first I was in too much hurry, and not only hurry as to labour, but in too much discomposure of mind; and my journal would have been full of many dull things[.]

1719 May 6 (Gregorian calendar), [Daniel Defoe], The Life and Strange Surprizing Adventures of Robinson Crusoe, […], 3rd edition, London: […] W[illiam] Taylor […], published 1719

"The real reason is that some small element of danger is involved in our experiment, though it is not sufficient to justify the discomposure which I see upon many of your faces."

1929, Sir Arthur Conan Doyle, When the World Screamed‎

But this is wrought by emission , or suppression , or suffocation , of the native spirits ; and also by the disordination and discomposure of the tangible parts , and other passages of nature , and not by a conflict of heats

1631, Francis [Bacon], “IX. Century.”, in Sylua Syluarum: Or A Naturall Historie. In Ten Centuries. […], 3rd edition, London: […] William Rawley; [p]rinted by J[ohn] H[aviland] for William Lee […]