noun
truncheon
TRUN-chun/ˈtrʌntʃən/
A short, heavy club used as a weapon, especially by police.
The wooden truncheon has a rounded end and a simple handgrip.

Etymology
Old French tronchon meant a cut-off piece or thick stick. That concrete sense carries into the weapon: a short, stout piece of wood used as a club.
In context
Within his truncheon's length; whilst they, distilled Almost to jelly with the act of fear
More examples
- The police officer carries a truncheon on his belt.
- The museum displays wooden truncheons once used by city police.
- The guard raises his truncheon but does not strike.
Forms
truncheon · truncheons