noun
quarterstaff
KWOR-ter-staf/ˈkwɔrtərˌstæf/
A long wooden staff used as a weapon.
The fighter holds a long wooden quarterstaff during a practice session.

Etymology
Staff already meant a strong pole or rod used as a weapon. Quarter’s contribution is uncertain: explanations involving weapon handling or a cut of timber both lack contemporary supporting evidence.
More examples
- She blocks the incoming strike with her quarterstaff.
- The museum displays a quarterstaff beside two swords.
- The guards in the story carry quarterstaves instead of spears.
Forms
quarterstaff · quarterstaffs · quarterstaves