whiffletree

n a crossbar on a wagon or carriage to which two whiffletrees are attached in order to harness two horses abreast

a whiffletree.

The bar of a carriage to which the traces are fastened; the whiffletree.

either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree n

n a just detectable amount n an indication that something has been present n a suggestion of some quality n a drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image n either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree n a visible mark (as a footprint) left by the passage of person or animal or vehicle v follow, discover, or ascertain the course of development of something v make a mark or lines on a surface v to go back over again v pursue or chase relentlessly v discover traces of v make one's course or travel along a path