mus·ter

[muhs-ter]
verb (used with object)
1.
to assemble (troops, a ship's crew, etc.), as for battle, display, inspection, orders, or discharge.
2.
to gather, summon, rouse (often followed by up ): He mustered all his courage.
verb (used without object)
3.
to assemble for inspection, service, etc., as troops or forces.
4.
to come together; collect; assemble; gather.
noun
5.
an assembling of troops or persons for formal inspection or other purposes.
6.
an assemblage or collection.
7.
the act of mustering.
8.
Also called muster roll. (formerly) a list of the persons enrolled in a military or naval unit.
00:10
Muster is one of our favorite verbs.
So is kibitz. Does it mean:
chat, to converse
to flee; abscond:
9.
muster in, to enlist into service in the armed forces.
10.
muster out, to discharge from service in the armed forces: He will be mustered out of the army in only two more months.
11.
pass muster,
a.
to pass a cursory inspection.
b.
to measure up to a certain standard; be adequate: Your grades don't pass muster.

Origin:
1250–1300; Middle English mostren (v.) < Old French mostrer < Latin mōnstrāre to show, derivative of mōnstrum portent; see monster

pre·mus·ter, verb (used with object)
un·mus·tered, adjective

muster, mustard.


1. convoke. See gather. 1, 4. convene; congregate. 5. gathering, assembly, convention.


1, 4. scatter, separate.
Dictionary.com Unabridged

must

1 [muhst]
auxiliary verb
1.
to be obliged or bound to by an imperative requirement: I must keep my word.
2.
to be under the necessity to; need to: Animals must eat to live.
3.
to be required or compelled to, as by the use or threat of force: You must obey the law.
4.
to be compelled to in order to fulfill some need or achieve an aim: We must hurry if we're to arrive on time.
5.
to be forced to, as by convention or the requirements of honesty: I must say, that is a lovely hat.
6.
to be or feel urged to; ought to: I must buy that book.
7.
to be reasonably expected to; is bound to: It must have stopped raining by now. She must be at least 60.
8.
to be inevitably certain to; be compelled by nature: Everyone must die.
verb (used without object)
9.
to be obliged; be compelled: Do I have to go? I must, I suppose.
10.
Archaic. (sometimes used with ellipsis of go, get, or some similar verb readily understood from the context): We must away.
adjective
11.
necessary; vital: A raincoat is must clothing in this area.
noun
12.
something necessary, vital, or required: This law is a must.

Origin:
before 900; Middle English most(e), Old English mōste (past tense); cognate with German musste. See mote2


1. Must, ought, should express necessity or duty. Must expresses necessity or compulsion: I must attend to those patients first. Soldiers must obey orders. Ought (weaker than must ) expresses obligation, duty, desirability: You ought to tell your mother. Should expresses obligation, expectation, or probability: You are not behaving as you should. Children should be taught to speak the truth. They should arrive at one o'clock.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To muster
Collins
World English Dictionary
must1 (mʌst, (unstressed) məst, məs) [Click for IPA pronunciation guide]
 
vb (takes an infinitive without to or an implied infinitive)
1.  used as an auxiliary to express obligation or compulsion: you must pay your dues. In this sense, must does not form a negative. If used with a negative infinitive it indicates obligatory prohibition
2.  used as an auxiliary to indicate necessity: I must go to the bank tomorrow
3.  used as an auxiliary to indicate the probable correctness of a statement: he must be there by now
4.  used as an auxiliary to indicate inevitability: all good things must come to an end
5.  used as an auxiliary to express resolution
 a.  on the part of the speaker when used with I or we: I must finish this
 b.  on the part of another or others as imputed to them by the speaker, when used with you, he, she, they, etc: let him get drunk if he must
6.  ( used emphatically ) used as an auxiliary to express conviction or certainty on the part of the speaker: he must have reached the town by now, surely; you must be joking
7.  (foll by away) used with an implied verb of motion to express compelling haste: I must away
 
n
8.  an essential or necessary thing: strong shoes are a must for hill walking
 
[Old English mōste past tense of mōtan to be allowed, be obliged to; related to Old Saxon mōtan, Old High German muozan, German müssen]

must2 (mʌst) [Click for IPA pronunciation guide]
 
n
the newly pressed juice of grapes or other fruit ready for fermentation
 
[Old English, from Latin mustum new wine, must, from mustus (adj) newborn]

must3 (mʌst) [Click for IPA pronunciation guide]
 
n
mustiness or mould
 
[C17: back formation from musty]

must4 (mʌst) [Click for IPA pronunciation guide]
 
n
a variant spelling of musth

muster (ˈmʌstə) [Click for IPA pronunciation guide]
 
vb (sometimes foll by up)
1.  to call together (numbers of men) for duty, inspection, etc, or (of men) to assemble in this way
2.  (US)
 a.  muster in to enlist into military service
 b.  muster out to discharge from military service
3.  (Austral), (NZ) (tr) to round up (livestock)
4.  to summon or gather: to muster one's arguments; to muster up courage
 
n
5.  an assembly of military personnel for duty, inspection, etc
6.  a collection, assembly, or gathering
7.  (Austral), (NZ) the rounding up of livestock
8.  a flock of peacocks
9.  pass muster to be acceptable
 
[C14: from old French moustrer, from Latin monstrāre to show, from monstrum portent, omen]

musth or must (mʌst) [Click for IPA pronunciation guide]
 
n
(often preceded by in) a state of frenzied sexual excitement in the males of certain large mammals, esp elephants, associated with discharge from a gland between the ear and eye
 
[C19: from Urdu mast, from Persian: drunk]
 
must or must
 
n
 
[C19: from Urdu mast, from Persian: drunk]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

must
O.E. moste, pt. of motan "have to, be able to," from P.Gmc. *motanan "to fix, allot, appoint, to have room, to be able" (cf. O.Fris. mota, M.L.G. moten, Du. moeten, Ger. müssen "to be obliged to," Goth. gamotan "to have room to, to be able to"), from PIE base *med- "to measure." Used as present
tense from c.1300, from the custom of using past subjunctive as a moderate or polite form of the present. The noun meaning "something that has to be seen or experienced" is from 1892.

must
"new wine," O.E. must, from L. mustum, short for vinum mustum "fresh wine," neut. of mustus "fresh, new."

must
"mold," c.1600, perhaps a back-formation of musty (q.v.).

must
"male elephant frenzy," 1871, from Urdu mast "intoxicated, in rut," from Pers. mast, lit. "intoxicated," related to Skt. matta- "drunk, intoxicated," pp. of madati "boils, bubbles, gets drunk," from PIE base *mad- "wet, to drip."

muster
c.1300, "to display, reveal, appear," from O.Fr. mostrer (modern Fr. montrer), from L. monstrare "to show," from monstrum "omen, sign" (see monster). Noun meaning "act of gathering troops" is c.1400. To pass musters (1570s) originally meant "to undergo military review without
censure." To muster out "gather to be discharged from military service" is 1834, Amer.Eng. To muster up in the fig. and transf. sense of "gather, summon, marshal" is from 1620s. Related: Mustered; mustering.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
musth also must   (mŭst)  Pronunciation Key 
An annual period of heightened aggressiveness and sexual activity in male elephants.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Slang Dictionary

must (do) definition


and must
  1. n.
    something that someone ought to do. : Seeing the Eiffel tower is a must do in Paris. , Tell me some of the “musts” in southern Utah.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
Cite This Source
American Heritage
Idioms & Phrases

muster

In addition to the idiom beginning with muster, also see pass muster.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
Cite This Source
Example sentences
Now he will have to muster a lot of courage to stay firm.
It takes the patience of a saint and skills many of us academic librarians
  couldn't begin to muster.
Their alternative was to try and muster social support for their ideas.
The legislature is expected to vote on this later this month, but the
  opposition looks highly unlikely to muster enough support.
Idioms & Phrases
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