celestial

The adjective is derived from Late Middle English celestial (“relating to the heavens or sky; (Christianity) relating to heaven, divine, heavenly”), borrowed from Old French celestial (modern French céleste), from Medieval Latin caelestiālis (“celestial”), or directly from its etymon Latin caelestis (“of or in the heavens, heavenly; (figurative) of the gods, divine; etc.”), from caelum (“heaven; sky”) (ultimate etymology uncertain, possibly from Proto-Indo-European *kéh₂ilom (“whole”)) + -estris (suffix meaning ‘dwelling or located in’ forming adjectives from nouns). The adverb and noun are derived from the adjective.

出典: Wiktionary「celestial」（CC BY-SA 4.0）