- a whiffletree.
Origin of swingletree
Also called swiveltree.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for swingletree
The cow is attached to each shaft and a small single-tree, or swingletree, by means of a broad strap harness.
The swingletree gear next to it probably was left there during the construction.The Cultural History of Marlborough, Virginia
C. Malcolm Watkins
- a crossbar in a horse's harness to which the ends of the traces are attachedAlso called: whippletree, (esp US) whiffletree
C15: from swingle + tree (in the sense: a post or bar)