Meaning

noun an insignificant student who is ridiculed as being affected or boringly studious

noun the grade of particle fineness to which a substance is ground

noun hard monotonous routine work

originFrom Middle English grynden, from Old English grindan, from Proto-West Germanic *grindan, from Proto-Germanic *grindaną. Cognate with Saterland Frisian gríende, griene (“to grind, mill”), Dutch grinden (“to grind”, rare) and grind (“gravel, shingle”), Albanian grind (“to brawl, fight”).

Etymology from Wiktionary, CC BY-SA 3.0