Welwisher or Wellwisher: How To spell?
The word Welwisher is misspelled against Wellwisher, a noun meaning "One who wishes another well; one who is benevolently or friendlily inclined."
Wellwisher has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings we & wisher which should not be misspelled with single 'L'
Wrong Spelling:  we-l-wisher  Correct Spelling:  we-ll-wisher 
Find more wrongly spelled words of Wellwisher to spell it well.