The forehead area above the eyes, including the eyebrows. Also refers to the edge or crest of a hill or steep place.
From Old English 'brū,' related to Old Norse 'brá' (eyebrow) and Sanskrit 'bhrū' (eyebrow). This Indo-European root shows the word's ancient origins, with cognates appearing across many language families, reflecting the universal human feature.
The word 'brow' connects our most expressive facial feature to dramatic landscapes - we speak of both a furrowed brow and a mountain's brow, recognizing that both eyebrows and hilltops are edges that define and frame what lies beyond. Shakespeare knew this when he wrote of 'the steep-up heavenly hill' with 'brow' as its crown.
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