must needs see under need

need /nēd/

1. Lack of something which one cannot well do without
2. Necessity
3. A state that requires relief, such as extreme poverty or distress
4. Lack of the means of living

1. To have occasion for
2. To want
3. To require
4. (used before the infinitive with to, or in negative, interrogative, conditional, etc sentences without to) to require or be obliged (to do something)
5. (used before a verbal noun) to require (to be dealt with in a particular way)

To be necessary

needcessˈity noun

A dialectal or non-standard combination of need and necessity

needˈer noun

needˈful adjective

1. Full of need
2. Having need
3. Needy
4. Necessary
5. Requisite

needˈfully adverb

needˈfulness noun

needˈily adverb

needˈiness noun

needˈless adjective

1. Not needed
2. Unnecessary
3. Having no need (Shakespeare)

needˈlessly adverb

needˈlessness noun

needˈly adverb (Shakespeare)

Necessarily

needˈment noun (Spenser)

Something needed

needs adverb

1. Of necessity
2. Indispensably

needˈy adjective

1. Very poor
2. Craving affection or attention
3. Necessary (Shakespeare)
4. (with the) people living in poverty

needˈy-hood noun (Herrick)

needˈ-be noun

A necessity

needˈfire noun

1. Fire produced by friction, to which a certain virtue is superstitiously attached
2. A beacon

had need (archaic)

Ought to

must needs or needs must (often ironic)

Must inevitably

the needful

1. Ready money (slang)
2. Whatever is requisite, usu in do the needful (informal)