Folishness or Foolishness: How To spell?
The word Folishness is misspelled against Foolishness, a noun meaning "A foolish practice; an absurdity."
Foolishness has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings f & lishness which should not be misspelled with single 'O'
Wrong Spelling:  f-o-lishness  Correct Spelling:  f-oo-lishness 
Find more incorrect spellings of Foolishness to spell right way.