The story
- Old English · inherited fromhlūdnes
- Middle English · inherited fromloudnesse
- English todayloudness
From Middle English loudnesse, lowdenesse, from Old English hlūdnes, equivalent to loud + -ness.
Etymology from Wiktionary, CC BY-SA 4.0.
loudness
Today it means: The perceptual strength or amplitude of sound pressure, measured in sones or phons. Full definition →
Middle English loudnesse ← Old English hlūdnes