Now written as two words.

1

c. 1325.  Chron. Eng., 769, in Ritson’s Metr. Rom., II. 302. Ant a blindmon hede sihte.

2

1599.  Shaks., Much Ado, II. i. 205. You strike like the blindman.

3

  Hence Blind man’s ball, a local name of the Puff-ball fungus, or Blind-ball; see BLIND a. 16.

4

1812.  Withering, Brit. Plants (1830), IV. 349.

5