οὖσον
From LSJ
οὕτως εἴη ἡμίν ὁ Θεός βοηθός καὶ τὸ ἱερὸν Αὐτοῦ Εὐαγγέλιον ὧδε ἐμφανισθέντα-ὁρκισθέντα → so help us God and Ηis holy Gospel the things here declared and sworn
English (LSJ)
τό,
A ship's tackle, ropes, Lyc.20 (pl.), Alex.Aet.3.21, pl. prob. in Antim. Col.6 (οἶσον is similarly glossed in Hsch.).
German (Pape)
Greek (Liddell-Scott)
οὖσον: τό, = οἶσον, δηλ. σχοινίον, Λυκόφρ. 20, Παρθενίου Ἐρωτ. 14. 21.