English
fender
From fend + -er.
A compound of fend + -er
Proto-Indo-European *gʷʰen- ‘strike, kill’
…
Latin *fendō ‘hit, thrust’
Latin dēfendō ‘to ward off’
Old French deffendre ‘to defend’
Middle English fenden ‘defend, fight, prevent’
English fend
Today it means
noun panel of a car which encloses the wheel area, especially the front wheels.
Language periods are conventional ranges, not dates for this word.
Etymograph / fender