BOY'AU, noun boy'o. In fortification, a ditch covered with a parapet, serving as a communication between two trenches.
BOY'-BLIND, adjective Blind as a boy; undiscerning.
Webster's Dictionary 1828
BOY'AU, noun boy'o. In fortification, a ditch covered with a parapet, serving as a communication between two trenches.
BOY'-BLIND, adjective Blind as a boy; undiscerning.