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coon·can(ko͞on′kăn′) or con·qui·an (kŏng′kē-ən)
An early version of rummy for two players using 40 cards, in which the object is to meld all of the cards in one's hand in straights of 3 or more cards of the same suit or sets of 3 or 4 cards of the same rank.
[Alteration of American Spanish conquián, probably from Spanish con quién, with whom? : con, with (from Latin cum; see kom in Indo-European roots) + quien, whom (from Latin quem, accusative of quis, who; see kwo- in Indo-European roots).]
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.
(Card Games) a card game for two players, similar to rummy
[C19: from (Mexican) Spanish con quién with whom?, apparently with reference to the forming and declaring of sequences and sets of cards]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a variety of rummy for two players.
[1885–90, Amer.; alter. of conquian < Sp con quien? literally, with whom?]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.