Staler or Stealer: How To spell?

The word Staler is misspelled against Stealer, a noun meaning "One who steals; a thief."

Stealer has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets st & ler is misspelled as 'A'
Wrong Spelling:  st-a-ler 
Correct Spelling:  st-ea-ler 
Explore spell check of Stealer to spell without errors.

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