συναπεργάζομαι
From LSJ
τοῦ δὲ πολέμου οἱ καιροὶ οὐ μενετοί → in war, opportunities won't wait | the chances of war will not wait (Thucydides 1.142.2)
English (LSJ)
A help in finishing or completing, Pl.R.443e, Ti.38e. II σ. τοὺς μύθους τῇ λέξει, τοῖς σχήμασι, elaborate the plots by language and gestures, Arist.Po.1455a22,30; of an orator, σ. σχήμασι καὶ φωναῖς καὶ ἐσθῆτι καὶ ὅλως τῇ ὑποκρίσει help the effect by the use of gestures, etc., Id.Rh.1386a31.
German (Pape)
[Seite 1001] dep. med., mit od. zugleich fertig machen, bereiten helfen; Plat. Tim. 38 e Rep. IV, 473 a; Plut.