[ mes-eyl ]
/ ˈmɛs eɪl /
a pivoted piece on a helmet between a visor and a beaver.
Origin of mesail
1865–70; probably ≪ Old French muçaille concealment, derivative of mucier to conceal; cf. miche
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019