Trusty Trust"y, a. [Compar. {Trustier}; superl. {Trustiest}.] 1. Admitting of being safely trusted; justly deserving confidence; fit to be confided in; trustworthy; reliable. [1913 Webster]

Your trusty and most valiant servitor. --Shak. [1913 Webster]

2. Hence, not liable to fail; strong; firm. [1913 Webster]

His trusty sword he called to his aid. --Spenser. [1913 Webster]

3. Involving trust; as, a trusty business. [R.] --Shak. [1913 Webster]

The Collaborative International Dictionary of English. 2000.