American Dictionary of the English Language

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PROS'PEROUS, adjective [Latin prosperus.] Advancing in the pursuit of any thing desirable; making gain or increase; thriving; successful; as a prosperous trade; a prosperous voyage; a prosperous expedition or undertaking; a prosperous man, family or nation; a prosperous war.

The seed shall be prosperous; the vine shall give her fruit. Zechariah 8:12.

1. Favorable; favoring success; as a prosperous wind.