plum·met [plummetplummetsplummetedplummeting] BrE [ˈplʌmɪt] NAmE [ˈplʌmɪt] verb intransitive to fall suddenly and quickly from a high level or position Syn: ↑plunge •Share prices plummeted to an all-time low. •Her spirits plummeted at the thought of meeting him again. •The jet plummeted into a row of houses. Verb forms:
Word Origin: late Middle English (as a noun): from Old French plommet ‘small sounding lead’, diminutive of plomb ‘lead’. The current verb sense dates from the 1930s.