One of the mysteries of the English language finally explained.
Rice that has not been husked.‘her husband harvested only three sacks of palay’
The African rubber vine Cryptostegia grandiflora (family Asclepiadaceae), a woody twining plant containing a milky latex, widely cultivated in the tropics and a serious weed in northern Australia. More fully "palay rubber" and "palay rubber vine".
Mid 19th century; earliest use found in John Lindley (1799–1865), botanist and horticulturist. From Tamil pālai plant with milky sap.
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