liver (n.1)

secreting organ of the body, Old English lifer, from Proto-Germanic *librn (source also of Old Norse lifr, Old Frisian livere, Middle Dutch levere, Dutch lever, Old High German lebara, German Leber "liver"), perhaps from PIE root *leip- "to stick, adhere," also used to form words for "fat."

Formerly believed to be the body's blood-producing organ; in medieval times it rivaled the heart as the supposed seat of love and passion. Hence lily-livered, a white (that is, bloodless) liver being supposed a sign of cowardice, Shakespeare's pigeon-livered, etc. Liver-spots, once thought to be caused by a dysfunction of the organ, is attested from 1730.

liver (n.2)

"one who lives (in a particular way)," late 14c., agent noun from live (v.).

updated on June 08, 2020

Definitions of liver from WordNet
liver (n.)
large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A; detoxifies poisonous substances and breaks down worn-out erythrocytes;
liver (n.)
liver of an animal used as meat;
liver (n.)
a person who has a special life style;
a high liver
liver (n.)
someone who lives in a place;
a liver in cities
liver (adj.)
having a reddish-brown color;
Synonyms: liver-colored
Etymologies are not definitions. From, not affiliated with etymonline.