Definition of trust:
"1671, O ever-failing trust / In mortal strength! Ã¢â‚¬â€ John Milton, Samson Agonistes"
to place confidence in; to rely on, to confide, or repose faith, in; as, we can not trust those who have deceived us; to give credence to; to believe; to credit
"I will never trust his word after. --Shak."