denier
1. de.ni.er \di-'ni-(-*)r\ n : one that denies 2. de.nier \d*-'ni(*)r, d*n-'ya-\ \'den-y*r\ n [ME denere, fr. MF denier, fr. L denarius, coin worth ten ass]es, fr. denarius containing ten, fr. deni ten each, fr. decem ten 1: a small orig. silver coin of France and western Europe from the 8th to t he 19th century 2: a unit of fineness for silk, rayon, or nylon yarn equal to the fineness of a yarn weighing one gram for each 9000 meters