Hawberk
Defined in 2 dictionaries — Black's (1910), Black's (1891)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A coat or shirt of mail; hence, derivatively (in feudal law) one who held a fief on the duty or service of providing himself with such armor and standing ready, thus equipped, for military service when 'called on. Wharton.
A Dictionary of Law
Henry Campbell Black · 1891
He who held land in France, by finding a coat or shirt of mail, with which he waa to be ready when called ipon. Wharton,