adjective: Cowardly or timid. ETYMOLOGY:
In earlier times, the liver was considered to be the seat of courage. Hence, lacking blood, a white liver, indicated lack of courage. Earliest documented use: 1616.

LILY-SLIVERED - a chief ingredient of the Choctaw Black Drink usually given as; a sliver of a lily freshly cut, the left eye of the false slink, the venom of three mudsnakes extracted when angry, a pinch of the poison nightshade plant finely powered.
To drink the Black Drink was said to restore courage.