Meaning

adjective roused to anger; - Mark Twain

adjective affected with madness or insanity

adjective marked by uncontrolled excitement or emotion

originFrom Middle English mad, madde, madd, medd, from Old English ġemǣd, ġemǣded (“enraged”), past participle of ġemǣdan, *mǣdan (“to make insane or foolish”), from Proto-Germanic *maidijaną (“to change; damage; cripple; injure; make mad”), from Proto-Germanic *maidaz ("weak; crippled"; compare Old English gemād (“silly, mad”), Old High German gimeit (“foolish, crazy”), literary German gemeit (“mad,…

Etymology from Wiktionary, CC BY-SA 3.0