Sentence:  John Gabriel Stedman described Quacy as a <WSD>"locoman</WSD>", diviner, and sorcerer (rather than an obeah man) who made and sold  'oias or amulets' that made their wearers 'invulnerable'. 
Meaning of the word marked with <WSD> tags:  A person in Suriname thought to be a clairvoyant or a sorcerer.