[brad] n [ME, fr. ON broddr spike; perh. akin to OE byrst bristle--more at bristle] (13c) 1: a thin nail of the same thickness throughout but tapering in width and having a slight projection at the top of one side instead of a head
2: a slender wire nail with a small barrel-shaped head
[2]brad vt brad.ded ; brad.ding (1794): to fasten with brads