dervish
/ˈdɜːvɪʃ/noun
- a Muslim (specifically Sufi) religious man who has taken vows of poverty and austerity. Dervishes first appeared in the 12th century; they were noted for their wild or ecstatic rituals and were known as dancing, whirling, or howling dervishes according to the practice of their order.（专指伊斯兰教苏非派的）伊斯兰苦行僧（最初出现于12世纪, 以其狂热、亢奋的仪式著称, 宣誓过清贫艰苦的修行生活, 按各自教团的习俗分别称为舞蹈苦行僧、转圈苦行僧和号叫苦行僧）。
词源
from Turkish derviş, from Persian darvīš 'poor'， (as a noun) 'religious mendicant'.