The main device (symbol) in the Langrish blazon is the covered cup. The two main tinctures (colors) are azure and sable.
The bright, strong blue color in Heraldry is known in English as azure, and similarly in other European languages – azul in Spanish, azurro in Italian and azur in French. The word has its roots in the Arabic word lazura, also the source of the name of the precious stone lapis lazuli 1A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Azure. Despite this, those heralds who liked to associate colours with jewels chose instead to describe blue as Sapphire. According to Wade, the use of this colour symbolises “Loyalty and Truth” 2The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P36.
Sable, the deep black so often found in Heraldry is believed to named from an animal of the marten family know in the middle ages as a Sabellinœ and noted for its very black fur 3A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Sable. In engravings, when colors cannot be shown it is represented as closely spaced horizontal and vertical lines, and appropriately is thus the darkest form of hatching, as this method is known 4Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 26. Although it may seem a sombre tone, and does indeed sometimes denote grief, it is more commonly said to represent Constancy 5The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P35.
Cups of all kinds have been popular charges on coats of arms since at least the 14th century. 6A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Cup In appearance and description they range from simple drinking pots (GERIARE of Lincoln – Argent three drinking pots sable) to covered cups, more like chalices in appearance. 7A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P288. These were borne by the BUTLER family in reference to their name and Wade suggests that their appearance may also refer to holy communinion within the church. 8The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P117