Meaning

noun a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures

noun (Roman mythology) messenger of Jupiter and god of commerce; counterpart of Greek Hermes

noun the smallest planet and the nearest to the sun

originEtymology tree Latin mercuriusder. Middle English mercurie English mercury The noun is derived from Middle English mercurie (“metallic chemical element, quicksilver; a plant, probably goosefoot (genus Chenopodium); (possibly) dog’s mercury (Mercurialis perennis); etc.”), borrowed from Late Latin mercurius (“metallic chemical element, quicksilver”), Latin Mercurius (“Mercury, the Roman god of…

Etymology from Wiktionary, CC BY-SA 3.0