Merriam-Webster Collegiate Dictionary - tuscan

 I. noun  Etymology: Middle English Toscayne, ultimately from Medieval Latin ~us ~, Etruscan, from Latin Tusci Etruscans  Date: circa 1509  1. a native or inhabitant of ~y  2.  a. the Italian language as spoken in ~y  b. the standard literary dialect of Italian  II. adjective  Date: 1563  1. of or relating to one of the five classical orders of architecture that is of Roman origin and plain in style  2. of, relating to, or characteristic of ~y, the ~s, or ~