Incraysement or Increasement: How To spell?

The word Incraysement is misspelled against Increasement, a noun meaning "Increase."

Increasement has vowels 'ea' together mispronounced as 'ay'
Word contains consecutive vowels 'EA' in between alphabets incr & sement is misspelled as 'AY'
Wrong Spelling:  incr-ay-sement 
Correct Spelling:  incr-ea-sement 
Explore spell check of Increasement to spell without errors.

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