royal mast or roy·al·mast EXAMPLES|WORD ORIGIN noun Nautical. a mast situated immediately above, and generally formed as a single spar with, a topgallant mast.
Origin of royal mast First recorded in 1785–95 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for royal mast Historical Examples of royal mast
Above the topmast comes the top-gallant-mast, and above that the royal-mast.
The royal-mast still towered above, and below, threatened the dark face of Le Gros.
At that moment we would rather have seen the royal-mast of the Pandora than the largest herd of antelopes in the world.
The top-mast, topgallant-mast, and royal-mast; any spars above these are termed poles.
William Henry Smyth