The word Haythenishly is misspelled against Heathenishly, an adverb meaning "In a heathenish manner."
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Heathenishly has vowels 'ea' together mispronounced as 'ay'
Word contains consecutive vowels 'EA' in between alphabets h & thenishly is misspelled as 'AY'
Wrong Spelling:  h-ay-thenishly 
Correct Spelling:  h-ea-thenishly 
Find more wrongly spelled words of Heathenishly to spell it well.