Meaning

noun the property resulting from being or relating to the greater in number of two parts; the main part

noun the property of something that is great in magnitude

noun the property possessed by a large mass

originFrom Middle English bulk, bolke (“a heap, cargo, hold; heap; bulge”), borrowed from Old Norse búlki (“the freight or the cargo of a ship”), from Proto-Germanic *bulkô (“beam, pile, heap”), from Proto-Indo-European *bʰelǵ- (“beam, pile, prop”). Compare Icelandic búlkast (“to be bulky”), Swedish dialectal bulk (“a bunch”), Danish bulk (“bump, knob”). Conflated with Middle English bouk (“belly,…

Etymology from Wiktionary, CC BY-SA 3.0