beˈguess,adv.Sc. Also 6–7 beges, begess. [f.be= by prep. + guess.] By guess, at a venture. c1500Scott in Evergr. I. 113 (Jam.) And hits begess.1597Montgomerie Cherry & Slae xciii, A tentless Merchand..bying geir begess.1724Ramsay Tea-t. Misc. (1733) I. 28 Twa pistals charg'd beguess.