English

keycode

From key + code.

A compound of key + code

Proto-West Germanic *kaiju

Old English cǣġ ‘key’

Middle English keye ‘a key’

English key

Latin caudex ‘the stock or stem of a tree’

Latin cōdex ‘tree trunk’

Old French code ‘system of law’

Middle English code ‘system of law’

English code

Today it means

noun A code that represents a keypress.

Language periods are conventional ranges, not dates for this word.