Plateas or Plateaus: How To spell?

The word Plateas is misspelled against Plateaus, which is plural of "Plateau"

Word contains consecutive vowels 'AU' in between alphabets plate & s is misspelled as 'A' as letter 'U' is phonetically ignored
Wrong Spelling:  plate-a-s 
Correct Spelling:  plate-au-s 
Explore spell check of Plateaus to spell without errors.

You might be interested to know

Romant or Romaunt?

Scap or Scaup?

Taromachian or Tauromachian?