It was a heart-tearing thing to see her run to the point of lather and then keep on.
You get up to soothe them and find them in a lather of sweat and scared to a tremble.
When Emil alighted at the Shabatas' gate, his horse was in a lather.
The horse was not winded, but it trembled and reeked with sweat and lather.
He was borne up the seas; he slid down the seas in a lather ...