The word Therefter is misspelled against Thereafter, an adverb meaning "According to that; accordingly."
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Thereafter has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets ther & fter is misspelled as 'E'
Wrong Spelling:  ther-e-fter 
Correct Spelling:  ther-ea-fter 
Explore spell check of Thereafter to spell without errors.