The Collaborative International Dictionary of English v.0.48:

Ley \Ley\ (l[=a]), v. t. & i.
   To lay; to wager. [Obs.] --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ley \Ley\, n. [OF.]
   Law. --Abbott.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ley \Ley\ (l[imac]), n. [Obs.]
   See Lye.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ley \Ley\ (l[=e]), n.
   Grass or meadow land; a lea.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ley \Ley\, a.
   Fallow; unseeded. [Obs.] --Beau. & Fl.
   [1913 Webster] Leyden jar

The Collaborative International Dictionary of English v.0.48:

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.]
   1. A strong caustic alkaline solution of potassium salts,
      obtained by leaching wood ashes. It is much used in making
      soap, etc.
      [1913 Webster]

   2. (Chem.) Sodium hydroxide or potassium hydroxide, or a
      concentrated aqueous solution of either compound.
      [PJC]

WordNet (r) 3.0 (2006):

ley
    n 1: a field covered with grass or herbage and suitable for
         grazing by livestock [syn: pasture, pastureland,
         grazing land, lea, ley]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

LEY. This word is old French, a corruption of loi, and signifies law; for
example, Termes de la Ley, Terms of the Law. In another, and an old
technical sense, ley signifies an oath, or the oath with compurgators; as,
il tend sa ley aiu pleyntiffe. Brit. c. 27.