Etymology

pole star

Today it means: The star visible to the naked eye which was in the past, is now, or will be in the future nearest a celestial pole of a planet. Full definition →

Latin stēllam polārem
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pole star · noun1

  1. Latin · calque ofstēllam polārem“the Pole Star”
  2. English todaypole star

From pole (“either of the two points on the Earth’s surface around which it rotates; similar points on any other rotating object”) + star, possibly a calque of Latin stēllam polārem (“the Pole Star”).

Pole Star · proper noun2

Capitalized form of pole star.

Etymology from Wiktionary, CC BY-SA 4.0.