Lewis & Short

plūmārĭus, a, um, adj. [pluma],

  1. I. of or belonging to soft feathers; transf., embroidered with feathers: vestes plumariā arte contextae, the art of embroidering, Hier. Ep. 29, n. 6; Adelh. Laud. Virg. 15: ars, embroidery, Vulg. Exod. 39, 28.
  2. II. Subst.: plūmārĭus, ii, m., an embroiderer, Varr. ap. Non. 162, 27: plumariorum textrinae, Vitr. 6, 7; Firm. Math. 3, 13, 10; Vulg. Exod. 35, 35; Inscr. Grut. 649, 8; Inscr. Rein. cl. 11, n. 114.