Knotiness or Knottiness: How To spell?
The word Knotiness is misspelled against Knottiness, a noun meaning "Difficulty of solution; intricacy; complication."
Knottiness has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings kno & iness which should not be misspelled with single 'T'
Wrong Spelling:  kno-t-iness  Correct Spelling:  kno-tt-iness 
Find more incorrect spellings of Knottiness to spell right way.