The Collaborative International Dictionary of English v.0.48:
Stagger \Stag"ger\, n.
1. An unsteady movement of the body in walking or standing,
as if one were about to fall; a reeling motion; vertigo;
-- often in the plural; as, the stagger of a drunken man.
[1913 Webster]
2. pl. (Far.) A disease of horses and other animals, attended
by reeling, unsteady gait or sudden falling; as, parasitic
staggers; apopletic or sleepy staggers.
[1913 Webster]
3. pl. Bewilderment; perplexity. [R.] --Shak.
[1913 Webster]
Stomach staggers (Far.), distention of the stomach with
food or gas, resulting in indigestion, frequently in
death.
[1913 Webster]