D defs.my
Entry 2 senses Webster, 1913

Disprove

/dĭs-pro͞ovʹ/ · Dis·prove · IPA /dɪsˈpɹuv/
01 v. t. To prove to be false or erroneous; to confute; to refute.
imp. & p. p. Disproved; p. pr. & vb. n. Disproving
  1. 1.
    To prove to be false or erroneous; to confute; to refute.
    “That false supposition I advanced in order to disprove it.” Atterbury.
  2. 2.
    To disallow; to disapprove of.[Obs.]