VARNISH (TO) (v.)
BATE, John, The Mysteryes of Nature and Art : Conteined in foure severall Tretises, The first of water workes The second of Fyer workes. The third of Drawing, Colouring, Painting, and Engraving. The fourth of divers Experiments as wel serviceable as delightful: partly Collected, and partly of the Authors Peculiar Pratice, and Invention, London, Ralph Mab - Thomas Harper, 1634.1 quotations
To make colouring, called Vernix : to varnish gold, silver, or any other colour on vellem, paper, timber, stone, &c.