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Meaning & History
From the second middle name of Exa Dark Sideræl Musk (2021-), daughter of Elon Musk and Grimes. According to Grimes, it is a spelling variation of the English word sidereal.The word itself is ultimately derived from Latin sīdereus meaning "of/belonging to the stars/stellar constellations/Sun", and from Latin sīdus meaning "a star, a constellation".