προσυπεργάζομαι
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
A prepare the ground for another, Plu.Sol.12.
German (Pape)
[Seite 785] dep. med., unvermerkt wozu einrichten, Sp.
Greek (Liddell-Scott)
προσυπεργάζομαι: ἀποθ., ὑπεργάζομαι χάριν τινός, ἀμφίβ. παρὰ Πλουτ. ἐν Σόλ. 72, ἀντὶ προϋπ-.