Sentence:  Isaac Pitt , one of the men from Lincoln , had taken a musket ball in his belly ; and though he had found the strength to run with us , now he collapsed and <WSD>lay</WSD> on the ground , dying , the Reverend holding his head and wiping his hot brow . 
Meaning of the word marked with <WSD> tags:  be lying, be prostrate; be in a horizontal position