Etymology of the English word excide
the English word
excidederived from the Late Latin word
excidere (cut out, off, down; perish; disappear; escape)
using the Latin prefix
ex-derived from the Late Latin word
ex (out)
derived from the Proto-Indo-European root
*eghsderived from the Late Latin word
caedere (chop, hew, cut out)
derived from the Proto-Indo-European root
*kaə-id-derived from the Latin word
cidereDate
The earliest known usage of excide in English dates from the 18th century.