πρὶν ἀλέκτορα φωνῆσαι τρὶς → before the rooster crows three times (Matthew 26:75)
besides: P. and V. πρὸς τούτοις, ἐπὶ τούτοις, ἔτι, V. καὶ πρός, πρός (rare P.), Ar. and P. προσέτι.
to add a fresh statement: P. καὶ δὴ καί.