Meaning

noun one who works hard at boring tasks

noun a laborer who is obliged to do menial work

verb work hard

originFrom Middle English druggen, perhaps from Old English *dryċġan, from Proto-West Germanic *druggjan, from Proto-Germanic *drugjaną, a denominative built to a lost noun *drugjaz (preserved in Old English Dryċġhelm), from Proto-Indo-European *dʰrewgʰ-; compare Old English drēogan (“to do; to suffer”).

Etymology from Wiktionary, CC BY-SA 3.0