This masculine noun with preposition means 'in the tresses' or 'in the locks,' appearing in Song of Songs 7:5 during an elaborate description of the beloved's beauty. The lover describes her hair: 'Your head crowns you like Carmel, and your flowing locks are like purple; a king is held captive in the tresses.' The term likely refers to flowing locks or ringlets of hair, though the etymology is debated—possibly related to 'flowing down.' The image is of luxurious, abundant hair that captivates the beholder. The romantic hyperbole ('a king held captive') emphasizes hair's alluring power in ancient Near Eastern beauty ideals.