English

grader

From grade + -er (agent noun suffix) or + -er (measurement suffix) (sense 4).

Formed from grade + -er

Proto-Indo-European *gʰradʰ-

Proto-Italic *graðus

Latin gradus ‘a step’

Middle French grade ‘a grade’

English grade

Today it means

noun A machine used in road maintenance, construction, and mining for leveling large surfaces.

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