from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Upper Northern U.S. See whiffletree. See Regional Note at whiffletree.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a wooden crossbar for a plough or carriage, pivoted in the middle, from which traces are fastened to a draught animal
from the GNU version of the Collaborative International Dictionary of English
- n. The pivoted or swinging bar to which the traces, or tugs, of a harness are fastened, and by which a carriage, a plow, or other implement or vehicle, is drawn; a whiffletree; a swingletree; a singletree. See Singletree.
- n. The cornel tree.
from The Century Dictionary and Cyclopedia
- n. Same as whiffle tree.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a crossbar that is attached to the traces of a draft horse and to the vehicle or implement that the horse is pulling
Perhaps blend of dialectal whippin, whippletree and swingletree.(American Heritage® Dictionary of the English Language, Fourth Edition)