n.
Pronunciation: ' ärch
Function: noun
Etymology: Middle English arche, from Anglo-French, from Vulgar Latin *arca, from Latin arcus ― more at ARROW
Date: 14th century
1 : a typically curved structural member spanning an opening and serving as a support (as for the wall or other weight above the opening)
2 a : something resembling an arch in form or function especially : either of two vaulted portions of the bony structure of the foot that impart elasticity to it b : a curvature having the form of an arch
3 : ARCHWAY
arch 1: 1 round: imp impost, sp springer, v voussoir, k keystone, ext extrados, int intrados; 2 horseshoe; 3 lancet; 4 ogee; 5 trefoil; 6 basket-handle; 7 Tudor