The Παροιμιῶν Παράρτημα, or Appendix to Proverbs, is not a single author but a collection of wisdom sayings compiled over several centuries. It was created within Greek-speaking Jewish communities during the Late Antique period, from roughly the 2nd to the 6th century CE. The geographical origin is uncertain but was likely a major center of Hellenistic Judaism like Alexandria.

This work is a textual compilation, not a standalone book. It consists of additional maxims and was appended to the Greek translation of the biblical Book of Proverbs in the Septuagint manuscript tradition. It survives today because it was included in important early Christian manuscripts, such as the 4th-century Codex Sinaiticus and the 5th-century Codex Alexandrinus. For most Jewish and Christian traditions, these sayings are non-canonical, though they are sometimes classified among the deuterocanonical writings in Orthodox Christian Bibles.

According to modern scholars, the Appendix is significant as evidence of the dynamic, living tradition of Jewish wisdom literature in the Greek language. It shows that the boundaries of biblical books could be fluid, with scribes adding relevant supplementary material. Its preservation in Christian manuscripts highlights the early Christian reception of Jewish texts. Academics view it as an important case study for understanding how ancient texts were edited and expanded, offering insight into the ethical concerns and interpretive practices of Hellenistic Judaism.