Definition of "adjuration"
noun
countable and uncountable, plural adjurations
A grave warning.
Quotations
The visitor, observing that she held the door on the inside, and that, when the uncle tried to open it, there was a sharp adjuration of 'Don't, stupid!' and an appearance of loose stocking and flannel, concluded that the young lady was in an undress.
1855 December – 1857 June, Charles Dickens, Little Dorrit, London: Bradbury and Evans, […], published 1857