Source : Webster's Revised Unabridged Dictionary (1913)

Sally \Sal"ly\ (s[a^]l"l[y^]), v. i. [imp. & p. p. {Sallied}
   (-l[i^]d); p. pr. & vb. n. {Sallying}.] [F. saillir, fr. L.
   salire to leap, spring, akin to Gr. "a`llesqai; cf. Skr.
   s[.r] to go, to flow. Cf. {Salient}, {Assail}, {Assault},
   {Exult}, {Insult}, {Saltation}, {Saltire}.]
   To leap or rush out; to burst forth; to issue suddenly; as a
   body of troops from a fortified place to attack besiegers; to
   make a sally.

         They break the truce, and sally out by night. --Dryden.

         The foe retires, -- she heads the sallying host.
                                                  --Byron.