The Collaborative International Dictionary of English v.0.48:

Lithe \Lithe\ (l[imac][th]), v. t. & i. [Icel hl[=y][eth]a. See
   Listen.]
   To listen or listen to; to hearken to. [Obs.] --P. Plowman.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Lithe \Lithe\, a. [AS. l[imac][eth]e, for lin[eth]e tender,
   mild, gentle; akin to G. lind, gelind, OHG. lindi, Icel.
   linr, L. lenis soft, mild, lentus flexible, and AS. linnan to
   yield. Cf. Lenient.]
   1. Mild; calm; as, lithe weather. [Obs.]
      [1913 Webster]

   2. Capable of being easily bent; pliant; flexible; limber;
      as, the elephant's lithe proboscis. --Milton.

   Syn: lithesome.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Lithe \Lithe\, v. t. [AS. l[imac][eth]ian. See Lithe, a.]
   To smooth; to soften; to palliate. [Obs.]
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "lithe":
   adaptable, bendable, bending, compliant, ductile, elastic,
   extensible, extensile, fabricable, facile, fictile, flexible,
   flexile, flexuous, formable, formative, giving, impressible,
   impressionable, lean, like putty, limber, lissome, lithesome,
   malleable, moldable, plastic, pliable, pliant, receptive,
   responsive, sensitive, sequacious, shapable, slender, slight, slim,
   spare, springy, submissive, supple, susceptible, thin, tractable,
   tractile, whippy, willowy, yielding