Trust - Definition

My one word for 2012 is 

Definition: Firm belief in the reliability, truth, ability, or strength of someone or something, assured, reliance on the character, one in which confidence is placed, dependence on something future or contingent, hope, a charge or duty imposed in faith or confidence or as a condition of some relationship

Middle English, probably of Scandinavian origin; akin to Old Norse traust trust; akin to Old English trēowe faithful