trustier
Webster's Dictionary (GCIDE)
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]