Note 67 — Chapter V · INTERNAL DEVELOPMENT OF THE JEWS DURING THE PERSIAN PERIOD
Reading edition
That the name is Sira and not Sirach, as it appears in the LXX, is generally accepted. It was the practice of Greeks to put a final Χ to foreign names to indicate that they were indeclinable. Cf. Ἰωσήχ (Luke iii. 26) for José.