Caysed or Ceased: How To spell?

The word Caysed is misspelled against Ceased, which is past tense of "Cease"

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

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