knit brow

knit one's brow

to cause one's brow to wrinkle. Bob knitted his brow when he was confused. Jane knitted her brow because she was angry.
See also: brow, knit
References in classic literature ?
Robert Darzac, with knit brow, was beginning to show impatience.
The table had been spread with substantial eatables nearly two hours before he presented himself-- a tall, stout man of sixty, with a face in which the knit brow and rather hard glance seemed contradicted by the slack and feeble mouth.
To this speech the other answered not a word, but he pushed the cowl back from his head and showed a knit brow, a hooked nose, and a pair of fierce, restless black eyes, which altogether made Robin think of a hawk as he looked on his face.
At these words Guy of Gisbourne looked upon Robin with knit brows, but, as the yeoman still looked innocent of any ill meaning, he bottled his words and strung his bow in silence.
His chin fell upon his breast, while his eyes rolled wildly from under his knit brows, in every direction, upon those who hemmed him in.
But Ajax came up with his shield like wall before him, on which Hector withdrew under shelter of his men, and sprang on to his chariot, giving the armour over to the Trojans to take to the city, as a great trophy for himself; Ajax, therefore, covered the body of Patroclus with his broad shield and bestrode him; as a lion stands over his whelps if hunters have come upon him in a forest when he is with his little ones--in the pride and fierceness of his strength he draws his knit brows down till they cover his eyes--even so did Ajax bestride the body of Patroclus, and by his side stood Menelaus son of Atreus, nursing great sorrow in his heart.