GROGGY

dazed, foggy, groggy, logy, stuporous

(adjective) stunned or confused and slow to react (as from blows or drunkenness or exhaustion)

Source: WordNet® 3.1

Etymology

Adjective

groggy (comparative groggier, superlative groggiest)

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

Of a horse: bearing wholly on its heels when trotting.

Source: Wiktionary

Grog"gy, a.

1. Overcome with grog; tipsy; unsteady on the legs. [Colloq.]

2. Weakened in a fight so as to stagger; -- said of pugilists. [Cant or Slang]

3. (Man.)

Definition: Moving in a hobbling manner, owing to ten der feet; -- said of a horse. Youatt.

Source: Webster’s Unabridged Dictionary 1913 Edition