pillar
1. pil.lar \'pil-*r\ n [ME piler, fr. OF, fr. ML pilare, fr. L pila] 1a: a firm upright support for a superstructure : POST 1b: a column or shaft standing alone esp. for a monument 2: a chief supporter : PROP 3: a solid mass of coal, rock, or ore left standing to support a mine roof 4: a body part likened to a column : from one place or one situation to another - from pillar to post 2. pillar vt : to support or strengthen with a pillar