Webster's 1913 Dictionary
DERVISH; DERVISE; DERVIS
Der "vish, Der "vise, Der "vis, n. Etym: [Per. derw, fr. OPer. derew to beg, ask alms: cf. F. derviche. ]
Defn: A Turkish or Persian monk, especially one who professes extreme poverty and leads an austere life.
New American Oxford Dictionary
dervish
der vish |ˈdərviSH ˈdərvɪʃ | ▶noun a member of a Muslim (specifically Sufi ) religious order 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. ORIGIN from Turkish derviş, from Persian darvīš ‘poor, ’ (as a noun ) ‘religious mendicant. ’
Oxford Dictionary
dervish
dervish |ˈdəːvɪʃ | ▶noun a member of a Muslim (specifically Sufi ) religious order 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. ORIGIN from Turkish derviş, from Persian darvīš ‘poor ’, (as a noun ) ‘religious mendicant ’.
Sanseido Wisdom Dictionary
dervish
der vish /də́ː r vɪʃ /名詞 C (イスラム教苦行派の )修道僧, 托鉢 （たくはつ ）僧 〘激しい舞踏 旋回などで宗教的喜悦を表す 〙.
The Wordsmith Dictionary