D defs.my
Entry 2 senses Webster, 1913

Whippletree

· Whip·ple·tree · IPA
01 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…
  1. 1.
    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. See: Singletree
    “[People] cut their own whippletree in the woodlot.” Emerson.
  2. 2.
    The cornel tree.(Bot.)