Muster \Mus"ter\, v. t. [imp. & p. p. {Mustered}; p. pr. & vb.
n. {Mustering}.] [OE. mustren, prop., to show, OF. mostrer,
mustrer, moustrer, monstrer, F. montrer, fr. L. monstrare to
show. See {Monster}.]
1. To collect and display; to assemble, as troops for parade,
inspection, exercise, or the like. --Spenser.

2. Hence: To summon together; to enroll in service; to get
together. ``Mustering all its force.'' --Cowper.

All the gay feathers he could muster. --L'Estrange.

{To muster troops into service} (Mil.), to inspect and enter
troops on the muster roll of the army.

{To muster troops out of service} (Mil.), to register them
for final payment and discharge.

{To muster up}, to gather up; to succeed in obtaining; to
obtain with some effort or difficulty.

One of those who can muster up sufficient
sprightliness to engage in a game of forfeits.
--Hazlitt.