Underlad or Underlaid: How To spell?

The word Underlad is misspelled against Underlaid, an adjective meaning "Laid or placed underneath; also, having something laid or lying underneath."

Word contains consecutive vowels 'AI' in between alphabets underl & d is misspelled as 'A'
Wrong Spelling:  underl-a-d 
Correct Spelling:  underl-ai-d 
Explore spell check of Underlaid to spell without errors.

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