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A strap slung across the forehead or the chest to support a load carried on the back.
[tump (alteration of mattump, of Southern New England Algonquian origin) + line.]
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.
(in the US and Canada, esp formerly) a leather or cloth band strung across the forehead or chest and attached to a pack or load in order to support it. Also called: tump
[C19: from tump, of Algonquian origin + line1; compare Abnaki mádǔmbi pack strap]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a strap or sling passed around the forehead to help support a pack carried on a person's back.
[1790–1800, Amer.; tump, earlier mattump, metomp < Southern New England Algonquian (< proto-Eastern Algonquian *mat- empty root appearing in names of crafted objects + *-a·pəy string)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.