- preservative (adj.)
[preservative 词源字典]
- late 14c., from Old French preservatif and directly from Medieval Latin praeservativus, from stem of praeservare (see preserve (v.)). The noun is from early 15c., "a preservative medication;" sense of "chemical added to foods to keep them from rotting" is from 1875.[preservative etymology, preservative origin, 英语词源]