the.com/muster
the ancient art of showing up, being counted, and hoping you pass inspection.
means to gather people or things together for inspection, action, or a formal count, or to summon up a quality like courage.
from from old french mostrer, meaning to show, itself from latin monstrare, the root of demonstrate; troops literally had to display themselves for the officer to count.
military rootsoriginally a formal roll call of soldiers before battle
pass mustermeans to meet the required standard, unchanged since the 1500s
hidden cousinshares a root with monster, both mean to show
for instance
dunkirk evacuation muster — 1940 roll calls organized chaotic retreat of 300,000 troops
militia musters — colonial america required able-bodied men to muster monthly with arms
muster point drills — modern offices still use them for fire evacuation headcounts