# Fortnum

> English word · Proper noun · frequency rank #91,521

## Definitions
1. A surname from Old French.

## Etymology
From Old French fort (“strong”) + anon (“young foal”), probably a nickname of some sort.

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