Merriam-Webster's Collegiate® Dictionary, 11th Edition
FAITH
I. noun (plural faiths) see: bide
Date: 13th century
1. allegiance to duty or a person ; loyalty , b. fidelity to one's promises, sincerity of intentions,
2. a. belief and trust in and loyalty to God, belief in the traditional doctrines of a religion, b. firm belief in something for which there is no proof, complete trust, something that is believed especially with strong conviction, see: belief
II. transitive verb
Date: 15th century
believe , trust