Thank you very much for sending the image. I have looked at it on and off all day with magnification and it kind of looks like it could be Witnig. Kind of strange but it does seem to be a surname. Is Witnig as an English surname possible? Could be Mr. Pigman's Mother? I know it is common at least in our family to do that. My Father's first name was Hays which was his Mother's maiden name.
The thought just occurred to me that the priest being duly required to drink all of the sacramental wine may have reversed the n and the i. Could be the name was Witing or Whiting.
Could you tell me how I can access the original records of Hunstanton like the one you sent? I would like to look at the birth and death records as well.