What is to copulate; said of birds, esp. the males. Shak. To tread on or upon. (a) To trample; to set the foot on in contempt. "Thou shalt tread upon their high places." Deut. xxxiii called?

tread — To copulate; said of birds, esp. the males. Shak. To tread on or upon. (a) To trample; to set the foot on in contempt. "Thou shalt tread upon their high places." Deut. xxxiii. (Webster's 1913.)

Sources