Word Study
galleass
CIDE DICTIONARY
galleass, n. [F. galéasse, galéace; cf. It. galeazza, Sp. galeaza; LL. galea a galley. See Galley.].
A large galley, having some features of the galleon, as broadside guns; esp., such a vessel used by the southern nations of Europe in the 16th and 17th centuries. See Galleon, and Galley. [1913 Webster]
" “The galleasses . . . were a third larger than the ordinary galley, and rowed each by three hundred galley slaves. They consisted of an enormous towering structure at the stern, a castellated structure almost equally massive in front, with seats for the rowers amidships.”" Motley.
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