plummet

UK: ˈplʌmɪt | US: ˈplʌmɪt

Definition
  1. vi. to fall or drop straight down at high speed

  2. n. a steep and rapid fall or decline

  3. n. a plumb or weight attached to a line, used for measuring depth

Structure
plum <lead (from Latin "plumbum") + et<diminutive suffix>
Etymology

The word "plummet" originates from the Old French "plommet," a diminutive of "plomb" (lead), derived from Latin "plumbum" (lead). Historically, a plummet was a small lead weight attached to a line for measuring vertical depth, reflecting its heavy, downward-pulling nature. By the 17th century, the verb form emerged, metaphorically describing anything dropping swiftly like a lead weight. The dual meanings—literal (measuring tool) and figurative (rapid fall)—highlight the word's logical progression from physical weight to abstract decline.

Examples
  1. The eagle plummeted toward its prey with terrifying speed.

  2. Stock prices plummeted after the company announced huge losses.

  3. Climbers use a plummet to check the depth of crevasses.

  4. Her spirits plummeted when she heard the bad news.

  5. The temperature is expected to plummet below freezing tonight.