seraph
/ˈserəf/noun
(pl. seraphim /-fɪm/ 或seraphs)
- an angelic being, regarded in traditional Christian angelology as belonging to the highest order of the ninefold celestial hierarchy, associated with light, ardour, and purity撒拉弗, 炽天使（在传统基督教天使学中被视为属于九级天使中的最高级天使, 象征“光明”、“热情”和“纯洁”）。
词源
Old English, back-formation from seraphim (plural), via late Latin and Greek from Hebrew Śěrāīm. Compare with CHERUB.