a. (UN-1 7 b.)
1821. Etonian, II. No. 6, 55. What can be more awful than this certain uncertainty, this unspeakable, unspellable, nameless name?
1852. Mundy, Antipodes, II. 97. Unspellable intonations … supply the place of the letters.
1872. ‘Mark Twain,’ Roughing It, xxiv. A Spanish saddle,… furnished with the ungainly sole-leather covering with the unspellable name.
