v. t. [ 1st pref. un- + tread. ] To tread back; to retrace. Shak. [ 1913 Webster ]
v. t. [ 1st pref. un- + treasure. ] To bring forth or give up, as things previously treasured. “The quaintness with which he untreasured, as by rote, the stores of his memory.” J. Mitford. [ 1913 Webster ]
a.
a. Incapable of being treated; not practicable. [ R. ] Dr. H. More. [ 1913 Webster ]