Source : Webster's Revised Unabridged Dictionary (1913)

Astray \A*stray"\, adv. & a. [See {Estray}, {Stray}.]
   Out of the right, either in a literal or in a figurative
   sense; wandering; as, to lead one astray.

         Ye were as sheep going astray.           --1 Pet. ii.
                                                  25.

Source : WordNet®

astray
     adv 1: away from the right path or direction; "he was led astray"
     2: far from the intended target; "the arrow went wide of the
        mark"; "a bullet went astray and killed a bystander" [syn:
         {wide}]