# quadragesimo-octavo

> English word · Noun

## Definitions
1. A paper size, (2.5"-3.1" x 2.5"-3.3"), one forty-eighth of a standard uncut flat sheet.
2. A book size, (2.5"-3.1" x 2.5"-3.3"), corresponding to the paper size.

## Etymology
From Latin ablatives of quadrāgēsimus (“fortieth”) and octāvus (“eighth”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/quadragesimo-octavo