Lye \Lye\, n. A falsehood. [Obs.]

See Lie.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Lye \Lye\, n. [Written also lie and ley.]

[AS. le['a]h; akin to D. loog, OHG. louga, G. lauge; cf. Icel. laug a bath, a hot spring.]

A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Lye \Lye\, n. (Railroad) A short side line, connected with the main line; a turn-out; a siding. [Eng.]

Source: Webster's Revised Unabridged Dictionary (1913)