# Ironside

> English word · Noun · frequency rank #64,450

## Definitions
1. A trooper in the Parliamentarian cavalry formed by English political leader Oliver Cromwell in the 17th century, during the English Civil War.

## Etymology
From iron + side, from a nickname of Oliver Cromwell's: "Old Ironsides".

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