Sodium
来自Big Physics
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early 19th century: from soda + -ium.
wiktionary
Coined by British chemist Humphry Davy in 1808, from soda + -ium, "soda" being from Italian soda, which may be from Arabic سُوَّاد (suwwād, “ saltwort”) or Arabic سُوَيْدَاء (suwaydāʾ, “Suaeda”). [1]
etymonline
sodium (n.)
metallic alkaline element, 1807, coined by English chemist Humphry Davy from soda; so called because the element was isolated from caustic soda (sodium hydroxide). The chemical symbol Na is from natrium, alternative name for the element proposed by Berzelius from natron, a name of a type of soda.
