Etymology
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Canopus (n.)

bright southern star, 1550s, ultimately from Greek Kanopos, Kanobos perhaps from Egyptian Kahi Nub "golden earth." The association with "weight" found in the name of the star in some northern tongues may reflect the fact that it never rises far above the horizon in those latitudes. Also the name of a town in ancient lower Egypt (see Canopic).

updated on October 10, 2017

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Definitions of Canopus from WordNet

Canopus (n.)
supergiant star 650 light years from Earth; second brightest star in the sky;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.