# birthtongue

> English word · Noun

## Definitions
1. One's first language, learnt in early childhood; native language.

## Etymology
From Middle English burþe tonge, equivalent to birth + tongue.

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