[buh-nan-zuh, boh-]
a rich mass of ore, as found in mining.
a source of great and sudden wealth or luck; a spectacular windfall: The play proved to be a bonanza for its lucky backers.

1835–45, Americanism; < Spanish: literally, smooth sea (hence, good luck, rich vein of ore), nasalized variant of Medieval Latin bonacia, equivalent to Latin bon(us) good + (mal)acia calm sea < Greek malakía softness (malak(ós) soft + -ia -ia) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To bonanza
World English Dictionary
bonanza (bəˈnænzə)
1.  a source, usually sudden and unexpected, of luck or wealth
2.  (US), (Canadian) a mine or vein rich in ore
[C19: from Spanish, literally: calm sea, hence, good luck, from Medieval Latin bonacia, from Latin bonus good + malacia dead calm, from Greek malakia softness]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

1844, Amer.Eng., from Sp. bonanza "a rich lode," originally "fair weather at sea, prosperity," from V.L. *bonacia, from L. bonus "good" (see bene-).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
The state's oil boom is no guaranteed bonanza for higher education.
The bonanza came at a cost to forests and wildlife, though.
But what made the whole thing such a bonanza for the humpbacks was the absence
  of sea ice.
Car companies that didn't cash in on the preceding bonanza are now focusing on
  putting money into their testing facilities.
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature