The fusil is a shape rather like a lozenge but taller and narrower, hence fusily refers to a field of similar shapes arranged in a regulat pattern. A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Fusil It is though that the shape originally derived from that of a spindle of yarn. Wade believes that the symbol is of very great age and quotes an earlier writer, Morgan who ascribes it the meaning of “Negotiation”. The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P117 The variant fusily refers to a treatment in which the entire field of the shield is covered in a pattern of fusils in alternating colours.