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A medicinal infusion, such as sweetened barley water.
[Middle English tisane, peeled barley, barley water, from Old French, from Latin ptisana, tisana, from Greek ptisanē, from ptissein, to crush.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Brewing) grape juice drained off without pressure
2. (Cookery) a variant spelling of tisane
[C14: from Old French tisane, from Latin ptisana, from Greek ptisanē barley groats]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014