Pericheitia or Perichaetia: How To spell?

The word Pericheitia is misspelled against Perichaetia, which is plural of "Perichaetium"

Perichaetia has vowels 'ae' together mispronounced as 'ei'
Word contains consecutive vowels 'AE' in between alphabets perich & tia is misspelled as 'EI'
Wrong Spelling:  perich-ei-tia 
Correct Spelling:  perich-ae-tia 
Find more wrongly spelled words of Perichaetia to spell it well.

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