English
aftertouch
From after- + touch.
Proto-Indo-European *dewk- ‘to draw, pull’
…
Frankish *tukkōn ‘to knock, strike, touch’
Vulgar Latin *tuccō ‘to knock, strike’
Old French tochier ‘to touch’
Middle English touchen ‘to touch’
English touch
Today it means
noun Pressure sensitivity on an electronic synthesizer, allowing the musician to change the tone or sound of a note after it is struck.
Language periods are conventional ranges, not dates for this word.
Etymograph / aftertouch