run mad

verb

run mad

verb

1

Archaic To go mad.

Sophia shreiked and fainted on the Ground—I screamed and instantly ran mad—.1790, Jane Austen, “Love and Freindship”, in Juvenilia:
They might have believed that the King had run mad.1894, Anthony Hope, The Prisoner of Zenda:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.