waves

The decorative edge pattern Wavy, sometimes written as undy is, for obvious reasons, associated with both water and the sea The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P40. Indeed, a roundel with alternating bars of azure and argent (blue and white) is known by the shorthand term fountain, representing water at the bottom of a well A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Water.