The word Hygaist is misspelled against Hygeist, a noun meaning "One skilled in hygiena; a hygienist."
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Word contains consecutive vowels 'EI' in between alphabets hyg & st is misspelled as 'AI'
Wrong Spelling:  hyg-ai-st 
Correct Spelling:  hyg-ei-st 
Find more wrongly spelled words of Hygeist to spell it well.