{ } n. [ Per. derwēsch, fr. OPer. derew to beg, ask alms: cf. F. derviche. ] 1. A Turkish or Persian monk, especially one who professes extreme poverty and leads an austere life. [ 1913 Webster ]

2. One of the fanatical followers of the Mahdi, in the Sudan, in the 1880's. [ Webster 1913 Suppl. ]

3. in modern times, a member of an ascetic Muslim sect notable for its devotional exercises, which include energetic chanting or shouting and rhythmic bodily movement, such as whirling, leading to a trance-like state or ecstasy. From these exercises the phrase whirling dervish is derived. [ PJC ]

4. figuratively, a person who whirls or engages in frenzied activity reminiscent of the dervish{ 3 } dancing. [ PJC ]

n. The act of undervaluing; a rate or value not equal to the real worth. [ 1913 Webster ]

v. t. 1. To value, rate, or estimate below the real worth; to depreciate. [ 1913 Webster ]

2. To esteem lightly; to treat as of little worth; to hold in mean estimation; to despise. [ 1913 Webster ]

In comparison of it I undervalued all ensigns of authority. Atterbury. [ 1913 Webster ]

I write not this with the least intention to undervalue the other parts of poetry. Dryden. [ 1913 Webster ]

n. A low rate or price; a price less than the real worth; undervaluation. Milton. [ 1913 Webster ]

n. One who undervalues. [ 1913 Webster ]

n. The lower or second verse. [ Obs. ] [ 1913 Webster ]

n. An undershirt. [ 1913 Webster ]

n. See Underlooker. [ 1913 Webster ]