siglum
/ˈsɪɡləm
/noun (plural sigla /ˈsɪɡlə/)
A letter or symbol which stands for a word or name, especially to denote a particular manuscript or edition of a text.The Wake's hybridist nature extends beyond genre, even beyond portmanteau words, indeed to the most atomic level of text (letters, punctuation, sigla of all forms)....
- The equal sign used here stands for a three-lined equal sign in the book, but my computer cannot produce such a siglum.
Origin
Early 18th century: from late Latin sigla (plural), perhaps from singula, neuter plural of singulus 'single'.