Sentence:  A "Negro" stood by all the while trembling, now and then lifting up his hands and eyes, muttering his black Art to some hobgoblin, and (when we least suspected it) skips out, and in a <WSD>limphatic</WSD> rapture drew a long knife which he brandisht about his head 7 or 8 times, and after so many spells put it up againe; he then kisses the humid earth 3 times and rises merrily: upon a sudden, the skie cleared and no more noise affrighted us. 
Meaning of the word marked with <WSD> tags:  Madly enthusiastic; frantic.