M words and starting N words.
Mudjar Rugs: Brilliantly tinted and often containing as many as ten colors, with characteristic main stripe of border made up of squares around diamonds with roses within, like tessellated tiles.
Muntin: Upright between panels.
Murano: Island near Venice to which the glass-houses of the city were transferred in the thirteenth century owing to the danger of fire. Venetian glass is often called Murano glass.
Murrhine or Murrine: Early mosaic ware from the East, found in the form of bowls and cups.
Musket: Heavy firearm (14-20 lb.) which originated in Spain. Out of favor by 1650, but the term remained to describe any portable long-arm gun.
Nailsea Glass: Glass-house founded 1788 by John R. Lucas at Nailsea, near Bristol. Nailsea produced what is probably the most flamboyant glass ever made in England. Colorful to the last, the Nailsea Glass-house closed in 1873.
Neale, James: Pottery manufacturer active Hanley, 1776-1800, who worked with various partners and traded as Neale & Palmer, Neale & Co., Neale & Wilson; made cream colored wares but the best known products are those in imitation of Wedgwood, jasper, basalts, etc.