jamb vs jambeau

jamb

• Synonym of jambeau (“piece of armor for the leg”). 

• Either of the vertical components that form the side of an opening in a wall, such as that of a door frame, window frame, or fireplace. 

• Any thick mass of rock that prevents miners from following the lode or vein. 

• To fix or attach a jamb to. 

jambeau

• A piece of armour for the leg (especially below the knee), a greave. 

• A certain fish.