sor·tie 
(sôrtē, sôr-tē)
(sôrtē, sôr-tē)n.
1. An armed attack, especially one made from a place surrounded by enemy forces.
2. A flight of a combat aircraft on a mission.
intr.v. sor·tied, sor·tie·ing, sor·ties
To go on a sortie.
[French, from feminine past participle of sortir, to go out, from Old French.]