Spuriosity

Ye are next to aſſure all Perſons, vvho are ſo kind as to give you Audience, that to prevent the leaſt Suſpicion of Spurioſity, they may ſee every Letter I have ever printed of Mr. Pope’s in his Ovvn Hand-VVriting, […]

So she made Sir John write to the "Times" to command the Chancellor of the Exchequer for the time being to put a tax on long words:— […] A heavy tax on words over four syllables, as heterodoxy, spontaneity, spiritualism, spuriosity, &c.

This is the sort of struggle which proves a man's metal, and declares it sterling or counterfeit. No spuriosity, no charlatanry can stand this fiery alembic of hard-wrought and exquisite calculation, in which one mathematic point or unit misplaced destroys the whole chain of reasoning, and proves the candidate a blunderer.

The supposition that authors have a preternatural ability to detect spuriosity in writing is as false as the comparable belief that their literary practices make them unerring as literary critics.

Clearly, there is no solution to the problem of spurious center-of-mass motion in the nonseparable case. Mathematically it is not even a well-defined problem. The only course is to be very careful not to draw conclusions which may be dependent on the spuriosity of the states in question. In particular, the spuriosity should be checked by evaluating <Hₑₘ> for the final eigenstates.

Nipper […] had abruptly decided that there was dirty work afoot and this spuriosity the villain. Uttering foolishly futile yaps of challenge—his sure undoing—Nipper heroically launched himself against the foe […]

Haydn spuriosities were generated by demand for [Joseph] Haydn's works and by manuscript circulation. In genres like keyboard sonatas, piano trios and songs, where manuscript circulation was light, there were relatively few spuriosities.

In their study of American extremist groups, John George and Laird Wilcox note that although distorting or actually fabricating quotations is commonly employed by extremists, "American leftists have used spuriosities of that sort sparingly, [while] groups and individuals on the far right have raised such utilizations to a high art form."