Simultanaity or Simultaneity: How To spell?

The word Simultanaity is misspelled against Simultaneity, a noun meaning "The quality or state of being simultaneous; simultaneousness."

Word contains consecutive vowels 'EI' in between alphabets simultan & ty is misspelled as 'AI'
Wrong Spelling:  simultan-ai-ty 
Correct Spelling:  simultan-ei-ty 
Check more misspelled words of Simultaneity to spell it correct.