Main Entry:

bo·nan·za

Pronunciation:

\bə-ˈnan-zə\

Function:

noun

Etymology:

Spanish, literally, calm sea, from Medieval Latin bonacia, alteration of Latin malacia, from Greek malakia, literally, softness, from malakos soft

Date:

1829

1: an exceptionally large and rich mineral deposit (as of an ore, precious metal, or petroleum)2 a: something that is very valuable, profitable, or rewarding <a box-office bonanza> b: a very large amount <a bonanza of sympathy> c: extravaganza <channels planning all-day viewing bonanzas — William Borders>