jilt

jilt
    n 1: a woman who jilts a lover
    v 1: cast aside capriciously or unfeelingly; "jilt a lover or a
         bride"
    

Jilt \Jilt\, n. [Contr. fr. Scot. jillet a giddy girl, a
   jill-flirt, dim. of jill a jill.]
   A woman who capriciously deceives her lover; a coquette; a
   flirt. --Otway.
   [1913 Webster]
    

Jilt \Jilt\, v. t. [imp. & p. p. {Jilted}; p. pr. & vb. n.
   {Jilting}.]
   To cast off capriciously or unfeelingly, as a lover; to
   deceive in love. --Locke.
   [1913 Webster]
    

Jilt \Jilt\, v. i.
   To play the jilt; to practice deception in love; to discard
   lovers capriciously. --Congreve.
   [1913 Webster]
    

95 Moby Thesaurus words for "jilt":
      Artful Dodger, Casanova, Don Juan, Machiavel, Machiavelli,
      Machiavellian, abandon, actor, back out, bamboozler, befuddler,
      beg off, beguiler, cast, cast aside, cast away, cast off, charmer,
      chuck, counterfeiter, cry off, deceiver, deep-six, deluder,
      depart from, desert, discard, dismiss, dispose of, dissembler,
      dissimulator, ditch, dodger, double-dealer, drop, drop out, dump,
      duper, eighty-six, eliminate, enchanter, entrancer, evacuate,
      faker, fooler, forger, forsake, gay deceiver, get quit of,
      get rid of, get shut of, give away, go back on, hoaxer, hypnotizer,
      jettison, jilter, joker, jokester, kidder, leave, leave behind,
      leave flat, leg-puller, maroon, mesmerizer, misleader, part with,
      plagiarist, plagiarizer, playactor, practical joker, pull out,
      quit, quit cold, ragger, reject, remove, renege, role-player,
      say goodbye to, seducer, slough, spoofer, stand down,
      take leave of, tease, teaser, throw away, throw out, throw over,
      throw overboard, toss overboard, vacate, withdraw