Emily Dickinson Lexicon

PROS'PER-OUS, a. [L. prosperus.]

1. Advancing in the pursuit of any thing desirable; making gain or increase; thriving; successful; as, a prosperous trade; a prosperous voyage; a prosperous exhibition or undertaking; a prosperous man, family or nation; a prosperous war. The seed shall be prosperous; the vine shall give her fruit. – Zech. viii.
2. Favorable; favoring success; as, a prosperous wind. – Denham.