Fourier or Fourrier: How To spell?

The word Fourier is misspelled against Fourrier, a noun meaning "A harbinger."

Fourrier has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings fou & ier which should not be misspelled with single 'R'
Wrong Spelling:  fou-r-ier 
Correct Spelling:  fou-rr-ier 
Check more misspelled words of Fourrier to spell it correct.

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