(n.) One who abstains; esp., one who abstains from the use of intoxicating liquors.

Albigensian Apostolici Catharist Encratite Franciscan Pythagorean Pythagorist Rechabite Sabbatarian Shaker Trappist Waldensian abstinent anchorite ascetic banian bhikshu dervish fakir flagellant fruitarian gymnosophist hermit hydropot mendicant nephalist puritan sannyasi teetotaler teetotalist vegetarian water-drinker yogi yogin