Sentence:  Ponocrates and Eudemon burst out in a laughing so heartily, that they had almost split with it, and given up the ghost, in rendering their souls to God: even just as Crassus did, seeing a <WSD>lubberly</WSD> ass eat thistles; 
Meaning of the word marked with <WSD> tags:  Clumsy and stupid; resembling a lubber (an inexperienced person).