Venous — relating to veins — comes from Latin vena (vein), with earliest documented use in 1626. It closes the “A change of character: Act I” week beside Bronzino’s Venus, Cupid, Folly, and Time, where Father Time lends “a visibly venous hand.” The word’s own note corrects a common picture: venous blood is dark red, not blue; veins only look blue through skin because of how light interacts with tissue.