Wiktionary
perpetuana
n. (context archaic English) A durable wool serge fabric.
Usage examples of "perpetuana".
By this heaven, I wonder at nothing more than our gentlemen ushers, that will suffer a piece of serge or perpetuana to come into the presence: methinks they should, out of their experience, better distinguish the silken disposition of courtiers, than to let such terrible coarse rags mix with us, able to fret any smooth or gentle society to the threads with their rubbing devices.