Trusty

Webster's Dictionary ^[1]

(1): ( superl.) Admitting of being safely trusted; justly deserving confidence; fit to be confided in; trustworthy; reliable.

(2): ( superl.) Hence, not liable to fail; strong; firm.

(3): ( superl.) Involving trust; as, a trusty business.

Trust'Y, a. That may be safely trusted that justly deserves confidence fit to be confided in as a trusty servant.

1. That will not fail strong firm as a trusty sword.