ἀπ' οὐδεμιᾶς προφάσεως

From LSJ

ἐβόα καὶ βαρβαρικῶς καὶ Ἑλληνικῶς → shouted out both in Persian and Greek, shouted out in the barbarian tongue and in Greek

Source

Greek > English (Woodhouse)

with no premonitory symptoms