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1520s, perhaps from bage "badge" (see badge) + -ard "one who carries some action or possesses some quality," suffix related to Middle High German -hart "bold" (see -ard). If so, the central notion is the badge-like white blaze on the animal's forehead (cf. French blaireau "badger," from Old French blarel, from bler "marked with a white spot;" also obsolete Middle English bauson "badger," from Old French bauzan, literally "black-and-white spotted"). But blaze (n.2) was the usual word for this.
An Old English name for the creature was the Celtic borrowing brock; also græg (Middle English grei, grey). In American English, the nickname of inhabitants or natives of Wisconsin (1833).
1790, from badger (n.), based on the behavior of the dogs in the medieval sport of badger-baiting, still practiced in 18c. England. Related: Badgered; badgering.
this word is found in Ex. 25:5; 26:14; 35:7, 23; 36:19; 39:34; Num. 4:6, etc. The tabernacle was covered with badgers' skins; the shoes of women were also made of them (Ezek. 16:10). Our translators seem to have been misled by the similarity in sound of the Hebrew _tachash_ and the Latin _taxus_, "a badger." The revisers have correctly substituted "seal skins." The Arabs of the Sinaitic peninsula apply the name _tucash_ to the seals and dugongs which are common in the Red Sea, and the skins of which are largely used as leather and for sandals. Though the badger is common in Palestine, and might occur in the wilderness, its small hide would have been useless as a tent covering. The dugong, very plentiful in the shallow waters on the shores of the Red Sea, is a marine animal from 12 to 30 feet long, something between a whale and a seal, never leaving the water, but very easily caught. It grazes on seaweed, and is known by naturalists as Halicore tabernaculi.