Definition of "supposed"

The people were averse to him, as the supposed author of the violence on the monasteries; establishments which were still revered and beloved by the commonalty.

1759, David Hume, “[Henry VIII.] Chapter XXXII.”, in The History of England, under the House of Tudor. […], volume I, London: […] A[ndrew] Millar, […], page 239

Many criticisms have been made of prophylactic external cephalic version based on the supposed dangers of the manipulation.

1936 November 28, “Prognosis in Prophylactic External Cephalic Version”, in The Lancet‎, page 1285

The great use of coffee in France is supposed to have abated the prevalency of the gravel, for where coffee is used as a constant beverage, the gravel and the gout are scarcely known.

1848, J. S. Skinner & Son, editor, The Plough, The Loom and the Anvil‎, volume I, Philadelphia: J. S. Skinner & Son, page 137

[I]t behoveth to peruse […] how much the king hath more now when the whole benefit is supposed to go to him, than he had when three parts of the benefit went to the committee.

a. 1627 (date written), Francis Bacon, “A.D. 1612. Ætat. 52.”, in James Spedding, editor, The Works of Francis Bacon, […]: The Letters and the Life of Francis Bacon […], volume IV, London: Longmans, Green, Reader, and Dyer, published 1858, page 287