seconds (n.)youdaoicibaDictYouDict[seconds 词源字典]
"articles below the first quality," c. 1600, plural of second (n.) "that which is after the first" (early 14c.), from second (adj.); originally attested in this sense in a Shakespeare sonnet. Meaning "second helping of food at a meal" is recorded from 1792.[seconds etymology, seconds origin, 英语词源]