speciosity

noun

1. (uncountable)The state or quality of being specious.
2. (countable, in-plural, rare)A specious action, promise, ideology, etc.

   “Till deep misery, if nothing softer will, have driven you out of your Speciosites into your Sincerities; and you find there either is a Godlike in the world, or else ye are an unintelligible madness;”

3. (uncountable)The state or quality of being speciose.

   “The circumstance that the proportion of taxa with 12 + 14 vertebrae increased in the lower categories is due to the speciosity of the Epinephelinae.”

   “[David] Jablonski’s end-Cretaceous mollusc genera suffer extinction to an equal degree, irrespective of their speciosity, geographical spread or other extinctionproof insurance policies.”

   “Here, then, is the old familiar pattern: one group among many expands until they outnumber all the rest. Yet the speciosity of the passerines should not be confused with ‘dominance’. Though they are, of course, immensely varied, they all essentially continue to exploit the niche of the small percher.”