1485. Waterford Arch., in 10th Rep. Hist. MSS. Comm., App. V. 320. The … usages and privieleges … that bene writte and unwritt.
1612. Chapman, Rev. Bussy D’Ambois, II. i. 119. God’s unwrit edicts.
1656. in Verney Mem. (1907), II. 51. [A letter] that had been better unwritt.
