ventail

Now the iron hulk lay, as obediently as ever, while the bare-legged man pressed its own swordpoint through the ventail of the visor.

The movable front to a helmet; the ventail.

Two thousand were there that for sorrow for the four knights unlaced their ventails, and tore their hair and their beards.

Erec grabs him by the helmet and forcibly drags it from his head, and unlaces the ventail, so that his head and face are completely exposed.

He maketh them take off their helmets and lower their ventails, and then kiss one another, afterward he leadeth them to his hermitage.