Etymology

fulcrum

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Today it means: The support about which a lever pivots. Full definition →

Latin fulcrum
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The story

  1. Latin · borrowed fromfulcrum“bedpost, foot of a couch”
  2. English todayfulcrum

Borrowed from Latin fulcrum (“bedpost, foot of a couch”), from fulciō (“prop up, support”).

Etymology from Wiktionary, CC BY-SA 4.0.