[German version]

(Θεόγνωστος; Theógnōstos). Byzantine grammarian, 9th cent. AD, author of a (lost) work on Euphemius' rebellion in Sicily in 826-827 (cf. Theophanes Continuatus, Chronographia p. 82 Bekker) and an 'Orthography' (Περὶ ὀρθογραφίας/Perì orthographías; Cod. Baroccianus 50, 10th cent.) containing 1003 rules. Several words, not recorded in earlier works and taken over into later etymologica, constitute the true value of this two-part instructional text, whose main sources are a glossary of Cyrillus [6] and (according to T.' letter of dedication) Herodianus [1].

Dams…