Sothfast or Soothfast: How To spell?
The word Sothfast is misspelled against Soothfast, an adjective meaning "Firmly fixed in, or founded upon, the thruth; true; genuine; real; also, truthful; faithful."
Soothfast has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings s & thfast which should not be misspelled with single 'O'
Wrong Spelling:  s-o-thfast  Correct Spelling:  s-oo-thfast 
Find more incorrect spellings of Soothfast to spell right way.