Umpire
This word came from the French term “nompere,” or “one without equal.” But because the sounds blurred together when spoken out loud, “a noumpere” ended up becoming “an oumpere,” later forming the word we now know as umpire.
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Tornado
This word is actually a mistaken rendering of the Spanish term “tronada,” which means “thunderstorm.” Over time, speakers accidentally switched the “r” and “o,” creating the modern word tornado.
Expediate
The verb expediate, which means “to hasten” or “to complete something promptly,” is believed to have been invented when English politician Sir Edwin Sandys misspelled expedite – meaning “ready for action” or “alert” – in an essay he wrote in the early 1600s. While the essay was later corrected, the spelling stuck.