Sentence:  Calloused fingers , caressed only by the smoothness of polished rosaries , had swayed excitedly beneath puckered chins where tiny <WSD>black</WSD> hairs sprouted , never to be tweezed away . 
Meaning of the word marked with <WSD> tags:  being of the achromatic color of maximum darkness; having little or no hue owing to absorption of almost all incident light