specio(u)s + -ity, originated 1426–75 from Middle English speciosity (attractive), from Latin speciōsitās (beauty), from speciēs (appearance), + English -ity (noun-forming suffix).
speciosity (countable and uncountable, plural speciosities)
- (uncountable) The state or quality of being specious.
- (countable, rare, chiefly in the plural) A specious action, promise, ideology, etc.
- 1843, Thomas Carlyle, Past and Present, book 2, ch. 8, The Electon
- 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;
- “speciosity” in The American Heritage Dictionary of the English Language, 4th edition, Boston, Mass.: Houghton Mifflin, 2000, →ISBN.
- “speciosity” in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.
- "speciosity" in the Webster's Revised Unabridged Dictionary, MICRA, 1996, 1998.