Source : Webster's Revised Unabridged Dictionary (1913)

Rix-dollar \Rix"-dol`lar\, n. [Sw. riksdaler, or Dan. rigsdaler,
   or D. rijksdaalder, or G. reichsthaler, literally, dollar of
   the empire or realm, fr. words akin to E. rich, and dollar.
   See {Rich}, {Dollar}.]
   A name given to several different silver coins of Denmark,
   Holland, Sweden,, NOrway, etc., varying in value from about
   30 cents to $1.10; also, a British coin worth about 36 cents,
   used in Ceylon and at the Cape of Good Hope. See {Rigsdaler},
   {Riksdaler}, and {Rixdaler}.

   Note: Most of these pieces are now no longer coined, but some
         remain in circulation.