fixure

From Latin fixura (“a fastening”), from figere (“to fix”). See fix, and compare fixture.

fixure (plural fixures)

1. (obsolete) Fixed position; stable condition; firmness.
   • 1602, William Shakespeare, Troilus and Cressida, act 1, scene 3:

     Divert and crack, rend and deracinate / The unity and married calm of states / Quite from their fixure!

fīxūre

1. vocative masculine singular of fīxūrus