Banzai
来自Big Physics
Japanese, literally ‘ten thousand years (of life to you)’.
wiktionary
From Japanese 万歳(banzai, “long live..., huzzah, hurrah”), from Middle Chinese 萬歲(mjòn-sjwèi), from Old Chinese 萬歲(*mans s-qʷʰats, “10,000 years [of life]”, i.e. “immortality”), from 萬(“10,000”) 歲(“year (of age)”).
Compare Mandarin 萬歲／ 万岁 (wànsùi).
About Adjective meaning, from banzai attack
etymonline
banzai (interj.)
Japanese war-cry, 1893, literally "(may you live) ten thousand years," originally a greeting addressed to the emperor, from ban "ten thousand" + sai "year."
