Quadruple (verb)

To increase four times in size, amount, or number.

Origin:

From the latin quadruplus, meaning 'four times as much'.

Examples:

1. The company's profits quadrupled over the past year.
2. Her weight quadrupled in just a few months due to her unhealthy eating habits.
3. The population of the city quadrupled in just a decade.
4. The number of tourists visiting the site quadrupled during the summer months.
5. The size of the company's workforce quadrupled since its establishment.