Wasailer or Wassailer: How To spell?
The word Wasailer is misspelled against Wassailer, a noun meaning "One who drinks wassail; one who engages in festivity, especially in drinking; a reveler."
Wassailer has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings wa & ailer which should not be misspelled with single 'S'
Wrong Spelling:  wa-s-ailer  Correct Spelling:  wa-ss-ailer 
Find more wrongly spelled words of Wassailer to spell it well.