Webster's Revised Unabridged Dictionary · 1913

Rix-dollar

Rix-dollar , noun

[Swedish riksdaler, or Danish rigsdaler, or Dutch rijksdaalder, or German reichsthaler, literally, dollar of the empire or realm, from words akin to English 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.

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