astral (adj.)youdaoicibaDictYouDict[astral 词源字典]
"pertaining to the stars," c. 1600, from Late Latin astralis, from Latin astrum "star," from Greek astron (see astro-). Meaning "pertaining to supersensible substances" is from 1690s, popularized late 19c. in Theosophy.[astral etymology, astral origin, 英语词源]