Lest /(lĕst)/

Lest

v. i.
  1. To listen. [Obs.]

Lest

n.
  1. Lust; desire; pleasure. [Obs.]

Lest

a.
  1. Last; least. [Obs.]

Lest

conj.
  1. For fear that; that . . . not; in order that . . . not.
    Love not sleep, lest thou come to poverty.
    — Prov. xx. 13.
    Wherefore let him that thinketh he standeth take heed lest he fall.
    — 1 Cor. x. 12.
  2. That (without the negative particle); -- after certain expressions denoting fear or apprehension.
    I feared Lest I might anger thee.