a. (UN-1 7 b.)
1780. T. Twining, Recreat. & Stud. (1882), 76. In gracing, he does the most beautiful, most unassignable, most unwritten and unwriteable things I ever heard.
1801. Southey, Lett. to G. C. Bedford, 19 Aug. These are unwriteable things—the gossip, and the playfulness.
1873. Earle, Philol. Eng. Tongue (ed. 2), 110. The first [vowel] we call by an unwriteable name.
