Quarterstaff n. : A long and stout staff formerly used as a weapon of defense and offense; -- so called because in holding it one hand was placed in the middle, and the other between the middle and the end.

Example:
Quarterstaff/ fighting staff (or whatever)?

Taxonomy
quarterstaff, weapon, staves, London, free encyclopedia, weapon styles, quarterstaves, metal tips, one hand, lethal weapon, thrust, training, Quarter-staff, the London, fencing schools, search, computer game, reading.

Defination from the web:
Quarterstaff: The Tomb of Setmoth. ... A quarterstaff is a medieval English weapon, a shaft of hardwood, sometimes with metal tips. ... The quarterstaff may be made from many kinds of wood, commonly ash, oak, hazel, or hawthorn. ...