Nassaun.
/ˈnasɔː/, U.S. /ˈnæˌsɔ/, /ˈnæˌsɑ/ Golf (originally and chiefly U.S.).
In golf: a three-part bet on the winner of the first nine holes, the second nine holes, and the match. More fully Nassau bet.The bet takes its name from a system of scoring in golf introduced c1900 at the Nassau Country Club, in which one point each is awarded to the winner of the first nine holes, of the second nine holes, and of the whole round.
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1914 S. Ford On with Torchy vi. 108 We're playing Nassau; ten a corner.
1926 Golf Illustr. Oct. 16/2 I understood after a little explanation what ‘five dollars, Nassau’ meant.
1952 B. Cerf Good for Laugh (1953) 160 We're all square at the seventeenth hole, playing a two-dollar nassau, when McGregor loses his ball in a thick rough.
2000 Spokesman-Rev. (Spokane, Washington) (Nexis) 19 Aug. 2 Fixing a divot is one of those rules that is both for the protection of the course and to ensure fair play. Don't replace a divot, and the player behind you may lose his nassau bet.
This is a new entry (OED Third Edition, June 2003; most recently modified version published online March 2022).
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