English
aftersound
From after- + sound.
Proto-Indo-European *swenh₂- ‘to sound, resound’
Latin sonus ‘sound’
Anglo-Norman soun
Middle English soun
Middle English sownde
English sound
Today it means
noun A sound that persists or remains audible after its source has ceased to produce it; the perception of such a sound.
Language periods are conventional ranges, not dates for this word.
Etymograph / aftersound