Speciosity

Origin

Originated 1426–75 from Middle English speciosity (attractive), from Latin speciōsitās (beauty), from speciēs (appearance), + English -ity (noun-forming suffix).

Full definition of speciosity

Noun

1. (uncountable) The state or quality of being specious.
2. (countable, rare) pl. Specious actions, promises, ideologies, etc.
• 1843, , , book 2, ch. 8, The ElectonTill 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;