An Etymological Dictionary of Astronomy and Astrophysics

A bright, blue → giant star ( → spectral type B2 III), one of the main stars
of the constellation → Orion. With a visual magnitude of 1.64,
it is about 1000 times more luminous than the Sun, and lies at a distance of 243 → light-years.

Etymology (EN): From L. bellatrix “a female warrior,” fem. of bellator, from bellum “war.”

Etymology (PE): Merzam, Ar. name of the star; its other name is Nâjed.