[cat.ty] n, pl catties [Malay kati] (1598): any of various units of weight of China and southeast Asia varying around 1 1/3 pounds (about 600 grams); also: a standard Chinese unit equal to 1.1023 pounds (500 grams)
[2]catty adj cat.ti.er ; -est (1886) 1: resembling a cat; esp: slyly spiteful: malicious
2: of or relating to a cat -- cat.ti.ly adv -- cat.ti.ness n