lest
Webster's Dictionary (GCIDE)
Lest \Lest\ (l[e^]st), v. i. To listen. [Obs.] --Chaucer. Spenser. [1913 Webster]
Lest \Lest\, n. [See List to choose.] Lust; desire; pleasure. [Obs.] --Chaucer. [1913 Webster]
Lest \Lest\, a. Last; least. [Obs.] --Chaucer. [1913 Webster]
Lest \Lest\, conj. [OE. leste, fr. AS. [eth][=y] l[=ae]s [eth][=e] the less that, where [eth][=y] is the instrumental case of the definite article, and [eth][=e] is an indeclinable relative particle, that, who, which. See The, Less, a.]
1.For fear that; that . . . not; in order that . . . not. [1913 Webster]
Love not sleep, lest thou come to poverty.— Prov. xx. 13.[1913 Webster]
Wherefore let him that thinketh he standeth take heed lest he fall.— 1 Cor. x. 12.[1913 Webster]
2.That (without the negative particle); -- after certain expressions denoting fear or apprehension. [1913 Webster]
I feared Lest I might anger thee.— Shak.[1913 Webster]