Etymology

Dimidium

D2I1M3I1D2I1U1M3

Today it means: 51 Pegasi b, a large hot Jupiter exoplanet, approximately 50 light-years away from Earth in the constellation of Pegasus. Full definition →

Latin dīmidium
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The story

  1. Latin · borrowed fromdīmidium“half”
  2. English todayDimidium

Borrowed from Latin dīmidium (“half”), referring to the planet's mass of approximately half the mass of Jupiter.

Words from the same roots

Latindīmidium all →

dimidium dimidiumque

Etymology from Wiktionary, CC BY-SA 4.0.