kyack definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
West a kind of packsack consisting of two sacklike containers swung on either side of a packsaddle
Origin: ; from uncertain or unknown; perhaps
kyack definition by American Heritage Dictionary
A packsack that hangs on either side of a packsaddle.
Origin: Probably from kayak.