====== 'Soda' and 'Sodium' etymology ====== >Soda (n.) late 15c., "sodium carbonate," an alkaline substance extracted from certain ashes (now made artificially), from Italian //sida// (or Medieval Latin //soda//) "a kind of saltwort," from which soda was obtained, of uncertain origin. Perhaps it is from a Catalan //sosa//, attested from late 13c., of uncertain origin. Proposed Arabic sources in a name of a variety of saltwort have not been attested and that theory is no longer considered valid. Another theory, considered far-fetched in some quarters, traces it to Medieval Latin //sodanum// "a headache remedy," ultimately from Arabic //suda// "splitting headache." > >Source : [[http://www.etymonline.com/index.php?allowed_in_frame=0&search=soda|Online Etymology Dictionary]] The element //Sodium// is named via its extraction from //soda// as above. ''//Note:// The [[https://www.etymonline.com/|Online Etymology Dictionary]] maintains a free-access list of the origins of thousands of English words, a significant proportion of which are unknown''