Lozenge, improper term.
The term lozenge is a four sided form, elongated in the vertical, the diamond in a deck of cards is a lozenge. Whatever the origin of the term, (I thought it was Peter Gray??) it is incorrect. What we are talking about are irregular polygons, with four, five and six sided polygons of irregular form that do not fit the terms, square, pentagon or hexagon. I have stopped using the term in discussing German printed fabrics. I refer to it as German printed fabric, with the adjectives of either four color or five color. If we want to use the German term it would be the IdFlieg term, Flügelstoffe,(wing fabric) or if you want mimic Manfred Thiemeyer, use his term, "Flugzeugstoff"(aircraft fabric). That term, Lozenge, has the same effect on me as, irregardless! The other day I heard a newsanchor use that term. Actually Manfred's term is more definitive, it covers the whole aircraft, not just the wings.
Blue skies Steve,