Definify.com

Webster 1913 Edition

Noun.

(a)

In England and Scotland, a cudgel used in fencing or fighting; a backsword.

(b)

The game played with singlesticks, in which he who first brings blood from his adversary’s head is pronounced victor; backsword; cudgeling.

singlestick ‎(countable and uncountable, plural singlesticks)

a one-handed wood stick used for fencing in place of a sword.^[1]
- 2010, Thomas A. Green, ‎Joseph R. Svinth, Martial Arts of the World
  Scottish broadsword training methods included practice with the singlestick. The singlestick is a wooden rod (usually ash) with a basket hilt. Length was usually 3 feet (just under a meter).
a martial art, sport or exercise using a cudgel or backsword.

↑ Allanson-Winn, R. G. et al. (2006). Broadsword and Singlestick: With Chapters on Quarter-Staff, Bayonet, Cudgel, Shillalah, Walking-Stick, Umbrella, and Other Weapons of Self-Defense. Paladin Press. ISBN 1581605129