mysteriosity en · NOUN
Etymology
From mysteri(ous) + -osity.
Meanings
-
(rare, uncountable) The quality of being mysterious.
I told her a bit about my night but I let there be an air of mysteriosity about things. Mostly I lied.
2007, Louise Rennison, “Return of the Hornmeister, quickly followed by the Luuurve God: Wednesday July 20th”, in ‘Luuurve Is a Many Trousered Thing…’: Fab New Confessions of Georgia Nicolson, London: HarperCollins Children’s Books, →ISBN, page 106:How peculiarly unfortunate that I should have expended so much effort learning navigation and then have B. J. vanish with such mysteriosity.
1903 May 10, Rupert Hughes, “Good Reading for Boys and Girls: The Cruise of the Lakerimmers”, in Clark Howell, editor, The Atlanta Constitution, volume XXXV, Atlanta, Ga.: Constitution Publishing Co., →OCLC, chapter 3 (A Long Cruise Begins), page 9, column 2:The drama which Messrs. Wilkie Collins and Fechter are working upon together for the Adelphi is an adaptation of the former’s “Moonstone,” a wildly improbable and dreadfully tedious story, in which one or two effective bits of characterization are overladen with elaboration, repetition, and what may be called, the mysteriosity of commonplace, ad infinitum.
1869 March 13, “Foreign Notes”, in Every Saturday: […], volume VII, number 167, Boston, Mass.: Fields, Osgood, & Co., […], →OCLC, page 352, column 1: