run mad

English

Verb

run mad (third-person singular simple present runs mad, present participle running mad, simple past ran mad, past participle run mad)

1. (now rare) To go mad. [from 15th c.]
   • 1790, Jane Austen, “Love and Freindship”, in Juvenilia:

     Sophia shreiked and fainted on the Ground—I screamed and instantly ran mad—.

   • 1894, Anthony Hope, The Prisoner of Zenda:

     They might have believed that the King had run mad.