Meaning

adjective of a light brown to brownish orange color; the color of tanned leather

originThe adjective is derived from Middle English tauni, tawne (“having a brownish-orange colour”) [and other forms], from Anglo-Norman taune, tawné, and Old French tané, tanné, tanney (“of a tan colour”), an adjective use of the past participle of taner (“to turn hide into leather, tan”), from tan (“pulped oak bark used to tan leather, tanbark”), ultimately from Proto-Celtic *tannos (“green oak”);…

Etymology from Wiktionary, CC BY-SA 3.0