rar·i·ty \ˈra(a)rəd.ē, ˈrer-, -rətē, -i\noun (-es) Etymology: Latin raritas, from rarus rare + -itas -ity — more at rare 1. a.: the quality or state of being rare < relish the rarity of his wit > b.: the fact of being rare : infrequency, scarcity < occurs only twice or three times, or with extreme rarity — Joshua Whatmough > 2.: something rare