Emily Dickinson Lexicon

MUS'TER, n. [It. and Port. mostra, a show or muster; Sp. muestra, a pattern, a model, a muster-roll; G. muster, a pattern, a sample; D. monster; Dan. mynster; L. monstrum, a show or prodigy.]

1. An assembling of troops for review, or a review of troops under arms. Encyc.
2. A register or roll of troops mustered. Ye publish the musters of your own bands. Hooker.
3. A collection, or the act of collecting. Ainsworth. To pass muster, to be approved or allowed. South.