Siderail or Sidereal: How To spell?

The word Siderail is misspelled against Sidereal, meaning "Pertaining to stars or constellations."

Sidereal has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets sider & l is misspelled as 'AI'
Wrong Spelling:  sider-ai-l 
Correct Spelling:  sider-ea-l 
Find more wrongly spelled words of Sidereal to spell it well.

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