Wighboard or Weighboard: How To spell?

The word Wighboard is misspelled against Weighboard, a noun meaning "Clay intersecting a vein."

Word contains consecutive vowels 'EI' in between alphabets w & ghboard is misspelled as 'I' as letter 'E' is phonetically ignor
Wrong Spelling:  w-i-ghboard 
Correct Spelling:  w-ei-ghboard 
Find more incorrect spellings of Weighboard to spell right way.