topgallant vs topmast

topgallant

noun
  • The sail suspended from the topmost section of a mast. 

  • The topmost section of a mast; topgallant mast. 

  • Anything elevated or splendid. 

adj
  • Situated above the topmast and below the royal mast. 

  • Of the most superior quality; the best of its kind. 

topmast

noun
  • The mast below the topgallant mast in a square-rigged ship. 

  • The highest mast in a fore-and-aft-rigged ship. 

How often have the words topgallant and topmast occurred in a corpus of books? (source: Google Ngram Viewer )