The headword, evidently extracted from somewhere, is the aorist passive participle, nominative (and vocative) masculine singular, of the verb sxedia/zw, I improvise, invent stories, do on the spur of the moment; cf. sigma 1770, sigma 1773, sigma 1775, sigma 1776, sigma 1777, sigma 1778, and see generally LSJ s.v.
[1] The verb in the gloss is the same form as the lemma, but from the verb e)pw=, I speak; see generally LSJ s.v. The headword is identically glossed in the Synagoge (sigma422) and Photius, Lexicon sigma895 (where Theodoridis presents the glossing phrase as para\ xrh=ma r(hqei/s); cf. Hesychius sigma2962 and ps.-Zonaras 1702.