παρασυνεργός
From LSJ
εἰ πάλιν ἔστι γενέσθαι, ὕπνος σ' ἔ̣χει οὐκ ἐπὶ δηρόν, εἰ δ' οὐκ ἔστιν πάλιν ἐλθεῖν, αἰώ̣νιος ὕπνος → if it is possible for you to be born again, you will fall asleep, briefly; if it is not possible to return — it would be eternal sleep
English (LSJ)
όν, A counteracting, opp. συνεργός, δύναμις Vett. Val.78.22.
Greek Monolingual
-όν, Α
αυτός που αντενεργει, που αντιδρά.