Asteroid
来自Big Physics
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early 19th century: from Greek asteroeidēs ‘starlike’, from astēr ‘star’.
wiktionary
Borrowed from Ancient Greek ἀστεροειδής(asteroeidḗs), from ἀστήρ(astḗr, “star”) + εἶδος(eîdos, “form”).
aster + -oid Coined by William Herschel, terming these objects "star-like"
etymonline
asteroid (n.)
"one of the planetoids orbiting the sun, found mostly between Mars and Jupiter," 1802, coined probably by German-born English astronomer William Herschel (1738-1822) from Greek asteroeides "star-like," from aster "star" (from PIE root *ster- (2) "star") + -eidos "form, shape" (see -oid). Related: Asteroidal.
