# lacertus

> English word · Noun · IPA /ləˈsɝː.təs/

## Definitions
1. A bundle or fascicle of muscular fibres.

## Etymology
From Late Latin lacertus (“muscle”), from Classical Latin lacertus (“upper arm”), possibly from lacerta (“lizard”). For the semantics, compare muscle from mūsculus (“little mouse”), derived from a supposed resemblance to little mice.

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