The word Ostaitis is misspelled against Osteitis, a noun meaning "Inflammation of bone."
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Word contains consecutive vowels 'EI' in between alphabets ost & tis is misspelled as 'AI'
Wrong Spelling:  ost-ai-tis 
Correct Spelling:  ost-ei-tis 
Find more wrongly spelled words of Osteitis to spell it well.