Source : Webster's Revised Unabridged Dictionary (1913)

Defix \De*fix"\, v. t. [L. defixus, p. p. of defigere to fix;
   de- + figere to fix.]
   To fix; to fasten; to establish. [Obs.] ``To defix their
   princely seat . . . in that extreme province.'' --Hakluyt.