The Collaborative International Dictionary of English v.0.48:

Honesty \Hon"es*ty\, n. [OE. honeste, oneste, honor, OF.
   honest['e], onest['e] (cf. F. honn[^e]tet['e]), L. honestas.
   See Honest, a.]
   1. Honor; honorableness; dignity; propriety; suitableness;
      decency. [Obs.] --Chaucer.
      [1913 Webster]

            She derives her honesty and achieves her goodness.
                                                  --Shak.
      [1913 Webster]

   2. The quality or state of being honest; probity; fairness
      and straightforwardness of conduct, speech, etc.;
      integrity; sincerity; truthfulness; freedom from fraud or
      guile.
      [1913 Webster]

            That we may lead a quiet and peaceable life in all
            godliness and honesty.                --1 Tim. ii.
                                                  2.
      [1913 Webster]

   3. Chastity; modesty. --Chaucer.
      [1913 Webster]

            To lay . . . siege to the honesty of this Ford's
            wife.                                 --Shak.
      [1913 Webster]

   4. (Bot.) Satin flower; the name of two cruciferous herbs
      having large flat pods, the round shining partitions of
      which are more beautiful than the blossom; -- called also
      lunary and moonwort. Lunaria biennis is common
      honesty; Lunaria rediva is perennial honesty.

   Syn: Integrity; probity; uprightness; trustiness;
        faithfulness; honor; justice; equity; fairness; candor;
        plain-dealing; veracity; sincerity.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Lunaria \Lunaria\ prop. n.
   A small genus of European herbs of the mustard family,
   including the herb honesty (Lunaria annua), which is also
   called moonwort and lunary.

   Syn: genus Lunaria.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Moonwort \Moon"wort`\ (m[=oo]n"w[^u]rt`), n. (Bot.)
      (a) The herb lunary or honesty. See Honesty.
      (b) Any fern of the genus Botrychium, esp. Botrychium
          Lunaria; -- so named from the crescent-shaped
          segments of its frond.
          [1913 Webster]

WordNet (r) 3.0 (2006):

moonwort
    n 1: of America and Eurasia and Australia [syn: moonwort,
         common moonwort, Botrychium lunaria]