英语词汇plumbago的起源、历史背景-英语词源词典

词汇	plumbago
词源	plumbago n. "graphite," 1784, from Latin plumbago "a type of lead ore, black lead," from plumbum "lead" (see plumb (n.)); it translates Greek molybdaina, which was used of yellow lead oxide and also of a type of plant (leadwort). Attested in English in the yellow oxide sense from 1610s; as a type of plant from 1747. Related: Plumbaginous. Entries linking to plumbago plumb n. early 14c., "a mass of lead hung on a string to show the vertical line" (mid-14c. as "the metal lead"), from Old French plombe, plomee "sounding lead," and directly from Late Latin plumba, originally plural of Latin plumbum "lead (the metal), lead ball; pipe; pencil," a word of unknown origin; Beekes and de Vaan say it probably is unrelated to Greek molybdos "lead" (dialectal bolimos). It is perhaps a loan-word from an extinct language of the western Mediterranean (based on similarities of words in Berber and Basque). The -b was restored in English after c. 1400. Plumb-rule is attested from c. 1400. updated on July 16, 2020
随便看	diptych dire direct direction directive directly directness director directorate directorial directorship directory dirge dirigible dirk dirndl dirt dirty dis- dis disability disable disabled disabuse disaccord

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plumbago n.