[ounce] n [ME, fr. MF unce, fr. L uncia 12th part, ounce, fr. unus one--more at one] (14c) 1 a: a unit of weight equal to 1/12 troy pound or 1/12 apothecaries' pound b: a unit of weight equal to 1/16 avoirdupois pound c: a small amount "an ~ of common sense"
2: fluidounce
[2]ounce n [ME once lynx, fr. MF, alter. (by misdivision, as if l'once the ounce) of lonce, fr. (assumed) VL lyncea, fr. L lync-, lynx] (1774): snow leopard