Arched
Arché, Archy, Concaved, Convexed, Enarched, Inarched, Invexed, Vouté

per fess arched

1. A line of partition in the form of an arch.

 2. Fr. Vouté. Used to describe an Ordinary which is bent or bowed. 

arched, double, having two arches or bends.

arched, reversed

per bend tri-arched reversed

Arched, treble, or tri-arched, having three arches.