# Ecclesiasticus

> English word · Proper noun

## Definitions
1. A book of the Catholic and Eastern Orthodox canon of the Old Testament, considered apocryphal by Protestants.

## Etymology
From Middle English Ecclesiasticus, from Late Latin Ecclēsiasticus, probably short for liber ecclēsiasticus (“church book”), from its use in church readings. Doublet of ecclesiastic.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/ecclesiasticus