groggy

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective groggy is

slowed or weakened, as by drink, sleepiness, etc.

As a noun stagger

is 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.

As a verb stagger

is sway unsteadily, reel, or totter.

As an adjective groggy is

slowed or weakened, as by drink, sleepiness, etc.