Stochastic \Sto*chas"tic\ (st[-o]*k[a^]s"t[i^]k), a. [Gr. stochastiko`s, from stocha`zesqai to aim, to guess, fr. sto`chos mark or aim.]

1. Conjectural; able to conjecture. [Obs.]

--Whitefoot.

Source: Webster's Revised Unabridged Dictionary (1913)