English is basically three ancient languages hiding in a trench coat.

• attire · tyre
  The word “tyre” was originally short for “attire.” The outer metal hoop of a wheel essentially acted as its clothing, dressing it up.

• Caribbean · cannibal
  Spanish explorers misrecorded the name of the Carib people as Caníbales. Because they believed these tribes ate human flesh, the name evolved into the general term for a flesh-eater.

• chair · cathedral
  Both originate from the Greek kathedra (“seat”). A cathedral is specifically named because it houses the official “seat” or throne of the local bishop.

• muscle · mouse
  From the Latin musculus (“little mouse”). Ancient Romans thought a flexing bicep rippling under the skin looked like a small scurrying mouse.

• flour · flower
  These used to be the same word. “Flower” originally meant the “best part” of something, so the finest part of the milled grain was called the “flower of the wheat.”

• flammable · inflammable
  They mean the exact same thing. The “in-” prefix comes from Latin for “into” (to burst into flames). “Flammable” was popularized later just so people wouldn’t confuse it with fireproof!

• vaccine · cow
  From the Latin vacca (cow). The first successful immunization used the mild “cowpox” virus to protect people from the deadly smallpox virus.

• California · Calida Fornax
  A popular theory suggests it comes from the Latin calida (hot) and fornax (furnace), used by early explorers to describe the blistering heat of the peninsula.

• Mortgage · Mort pledge
  From the Old French mort (dead) and gage (pledge). The deal “dies” when the debt is paid off, or when you fail to pay and lose the property.

• Whiskey · Uisce beatha
  An Anglicized mispronunciation of the Gaelic phrase uisce beatha, which literally translates to the “water of life.”

• Shirt · Skirt
  They stem from the same Germanic word for a short garment. The Anglo-Saxons pronounced it with a “sh” sound (shirt), while the Vikings pronounced it with a hard “sk” sound (skirt).

• Lens · Lentil
  The Latin word for the lentil bean is lens. Early scientists named optical lenses after the bean because their curved glass discs looked exactly the same.

• Poison · Potion
  Both derive from the exact same Latin word, potio, which simply meant “a drink.” Over time, one became magical or medicinal, while the other became deadly.

• planet · plankton
  Both come from the Greek word for “wanderer.” Planets are wandering stars, and plankton wander the ocean currents.

• helicopter · pterodactyl
  Both share the Greek root pteron (wing). A helicopter is a “spiral-wing” and a pterodactyl is a “wing-finger.”

• quarantine · forty
  Comes from the Italian word quaranta (forty). During the Black Death, arriving ships had to anchor for 40 days before anyone could go ashore.

• Clue
  Originally spelled clew, meaning a ball of yarn. It changed to mean “a piece of evidence” because of the Greek myth where Theseus uses a ball of yarn to navigate his way out of the Minotaur’s labyrinth.

• Gymnasium
  Comes from the Greek word gymnos, meaning “naked.” In ancient Greece, athletes exercised and competed completely unclothed.

• Nightmare
  The “mare” isn’t a female horse. It comes from an Old English word for a goblin or demon that was believed to sit on your chest while you slept, suffocating you and causing bad dreams.

• Sinister
  It is literally just the Latin word for “left.” Because left-handed people were a minority, ancient and medieval superstitions associated the left side with evil, trickery, and bad luck.

• Robot
  First introduced in a 1920 Czech sci-fi play, it comes from the Slavic word robota, which means “forced labor,” “drudgery,” or “serfdom.”

• Ketchup
  It comes from the Hokkien Chinese word kê-tsiap, which originally referred to a fermented fish sauce. It didn’t involve tomatoes for centuries!

• Hippopotamus
  A literal translation from ancient Greek: hippos (horse) + potamos (river). The Greeks just called them “river horses.”

• Amethyst
  From the Greek a- (not) and methysko (intoxicated). Ancient Greeks believed that wearing this purple gemstone or drinking from cups made of it would prevent you from getting drunk.

• Sandwich
  Named after the 18th-century Earl of Sandwich. He was such a hardcore gambler that he demanded his meat be served between two pieces of bread so he could eat without getting his playing cards greasy.

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