1928 (morphine barbiturate is from 1918), with chemical ending -ate (3) + barbituric (1865), from German barbitur in Barbitursäure "barbituric acid," coined 1863 by chemist Adolf von Baeyer (1835-1917). The reason for the name is unknown; some suggest it is from the woman's name Barbara, or perhaps from Latin barbata, in Medieval Latin usnea barbata, literally "bearded moss." Second element is because it was obtained from uric acid. Related: Barbitol.
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