The crossword solution for the term ART OF ERTE is DECO, which stands for 'Decorative Art'. This term was coined by French architect and designer, Charles Edouard Jeanneret-Gris, who is better known as Le Corbusier. He used the term to describe the style of art popularized by Erte, a Russian-born French artist whose works were characterized by their bold colors, geometric shapes, and intricate designs.