What is "prosperousness"

Prosperous \Pros"per*ous\, a. [L. prosperus or prosper, originally, answering to hope; pro according to + the root of sperare to hope. See Despair.]

1. Tending to prosperity; favoring; favorable; helpful.

   A happy passage and a prosperous wind.
   --Denham.

2. Being prospered; advancing in the pursuit of anything desirable; making gain, or increase; thriving; successful; as, a prosperous voyage; a prosperous undertaking; a prosperous man or nation.

   By moderation either state to bear Prosperous or adverse.
   --Milton.

   Syn: Fortunate; successful; flourishing; thriving; favorable; auspicious; lucky. See Fortunate. [1913 Webster] -- Pros"per*ous*ly, adv. -- Pros"per*ous*ness, n.

n. the degree to which a thing is prosperous