= ps.-Zonaras 1666.23. Adler also cites the unedited lexicon of Codex Laurentianus 59.16, and compares Lexicon Ambrosianum 697. The headword is present middle participle, nominative singular masculine, of the verb spa/w ['draw', 'sprain', 'convulse'; cf. sigma 974]. There are several literary attestations of this form, but none with the meaning offered here.