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.
— Pros″per‐ous‐ly, adv. — Pros″per‐ous‐ness, n.