v. t.1.To brace, fasten, or bind underneath or below.
References in periodicals archive ?
The underbrace is notched to allow the king brace, made of fir, to pass through.
Searer's handsome Granada highboy with double doors attached by strap hinges features a typically-Spanish, hand-forged iron underbrace attached to the center of the base and to the leg stretchers.
heavily to the doctrinal template that underbraces [environmental]