The word Overstrian is misspelled against Overstrain, a verb meaning "To strain one's self to excess."
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Word contains consecutive vowels 'AI' in between alphabets overstr & n is misspelled as 'IA'
Wrong Spelling:  overstr-ia-n 
Correct Spelling:  overstr-ai-n 
Find more wrongly spelled words of Overstrain to spell it well.