# peroneus longus

> English word · Noun · IPA /pɛ.ɹə(ʊ)ˌniː.əs ˈlɒŋ.ɡəs/

## Definitions
1. A muscle of the lateral side of the leg which arises from the head and side of the fibula, ends in a long tendon that inserts on to the cuneiform and first metatarsal bones on the medial side via a long tendon passing under the foot, and serves to extend the ankle and evert the foot.

## Etymology
Borrowed from New Latin peroneus longus, clipping of mūsculus peroneus longus (“long peroneal muscle”).

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