# rough breathing

> English word · Noun

## Definitions
1. Aspiration on a vowel or semivowel in Ancient Greek.
2. A diacritic (῾ (h)/◌̔) in Ancient, Medieval and Modern Greek used to indicate this aspiration (or its historical presence), e.g. ἁ, ῥ.

## Etymology
Calque of Latin spīritus asper, from Ancient Greek δασὺ πνεῦμα (dasù pneûma).

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