Webster's Revised Unabridged Dictionary · 1913

Need

Need (nēd) , noun

[Old English need, neod, nede, Anglo-Saxon neád, nȳd; akin to Dutch nood, German not, noth, Icelandic nauer, Swedish & Danish nod, Gothic nauþs.]

1.
A state that requires supply or relief; pressing occasion for something; necessity; urgent want.
And the city had no need of the sun. — Rev. xxi. 23
I have no need to beg. — Shakespeare
Be governed by your needs, not by your fancy. — Jer. Taylor
2.
Want of the means of subsistence; poverty; indigence; destitution. — Chaucer
Famine is in thy cheeks; Need and oppression starveth in thine eyes. — Shakespeare
3.
That which is needful; anything necessary to be done; (pl.) necessary things; business. [Obsolete] — Chaucer
4.
Situation of need; peril; danger. [Obsolete] — Chaucer

Need (nēd) , transitive verb

[See Need, n. Compare Anglo-Saxon nȳdan to force, Gothic nauþjan.]

To be in want of; to have cause or occasion for; to lack; to require, as supply or relief.
Other creatures all day long Rove idle, unemployed, and less need rest. — Milton

With another verb, need is used like an auxiliary, generally in a negative sentence expressing requirement or obligation, and in this use it undergoes no change of termination in the third person singular of the present tense. “And the lender need not fear he shall be injured.”

Need , intransitive verb

To be wanted; to be necessary. — Chaucer
When we have done it, we have done all that is in our power, and all that needs. — Locke

Need , adverb

Of necessity. See Needs. [Obsolete] — Chaucer