συμπαρέπομαι
From LSJ
θοῦ, Κύριε, φυλακὴν τῷ στόµατί µου καὶ θύραν περιοχῆς περὶ τὰ χείλη µου → set a guard over my mouth, Lord; keep watch over the door of my lips | set a guard, O Lord, over my mouth; keep watch over the door of my lips (Psalm 140:3, Septuagint version)
English (LSJ)
A go along with, accompany, X.Cyr.7.1.8, Eq.11.12: metaph., ὅλῃ τῇ ἡμέρῃ Hp. Epid.5.89; τιμαὶ . . ἑκάστοις -είποντο X.Cyr.2.1.23, cf. Hier.8.5, Phld. Oec.p.53J.; ὅσοις σ. τις Χάρις Pl.Lg.667b; αἱ -όμεναι ὀσμαί Arist.Pr. 907a1.