Quash \Quash\, v. t. [imp. & p. p. {Quashed}; p. pr. & vb. n.
{Quashing}.] [OF. quasser, F. casser, fr. L. cassare to
annihilate, annul, fr. cassus empty, vain, of uncertain
origin. The word has been confused with L. quassare to shake,
F. casser to break, which is probably of different origin.
Cf. {Cashier}, v. t.] (Law)
To abate, annul, overthrow, or make void; as, to quash an
indictment. --Blackstone.
[1913 Webster]