Billethaud or Billethead: How To spell?
The word Billethaud is misspelled against Billethead, a noun meaning "A round piece of timber at the bow or stern of a whaleboat, around which the harpoon lone is run out when the whale darts off."
Billethead has vowels 'ea' together mispronounced as 'au'Word contains consecutive vowels 'EA' in between alphabets billeth & d is misspelled as 'AU'
Wrong Spelling:  billeth-au-d  Correct Spelling:  billeth-ea-d 
Check more misspelled words of Billethead to spell it correct.