Sentence:  the Painter "Protogenes" ... having perfected the image of a wearie and panting dog, ... but being unable, as he desired, <WSD>lively</WSD> to represent the drivel or slaver of his mouth, vexed against his owne worke, took his spunge, and moist as it was with divers colours, threw it at the picture nb.... 
Meaning of the word marked with <WSD> tags:  In a lifelike manner.