noun
or al·lette əˈlet, aˈ-
( -s )
Etymology: French alette, from Old French alette, elette small wing, diminutive of ele wing — more at aisle
1. Roman & neoclassic architecture : the pilasterlike abutment of an arch that is seen on either side of the large engaged column and that carries the entablature
2. : a wing of a building