groggy (adj.)youdaoicibaDictYouDict[groggy 词源字典]
1770, "drunk, overcome with grog so as to stagger or stumble," from grog + -y (2). Non-alcoholic meaning "shaky, tottering" is from 1832, originally from the fight ring. Also used of hobbled horses (1828). Related: Groggily; grogginess.[groggy etymology, groggy origin, 英语词源]