Meaning

noun a slope or hillside

originFrom Middle English bro, bra (“bank of a stream; raised edge of a ditch or pit”), from Old Norse brá (“eyebrow; eyelash”) (probably in the sense of the brow of a hill), from Proto-Germanic *brēwō (“eyebrow”), from Proto-Indo-European *h₃bʰrúHs (“eyebrow”). The English word is cognate with Old English brǣw, brēaw (“eyelid”), Old High German brāwa (Middle High German brā, modern German Braue…

Etymology from Wiktionary, CC BY-SA 3.0