Rhayc or Rheic: How To spell?

The word Rhayc is misspelled against Rheic, an adjective meaning "Pertaining to, or designating, an acid (commonly called chrysophanic acid) found in rhubarb (Rheum)."

--> Word contains consecutive vowels 'EI' in between alphabets rh & c is misspelled as 'AY'
Wrong Spelling:  rh-ay-c 
Correct Spelling:  rh-ei-c 
Browse incorrect spellings of Rheic to spell it good.

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