Dethwatch or Deathwatch: How To spell?

The word Dethwatch is misspelled against Deathwatch, a noun meaning "A small beetle (Anobium tessellatum and other allied species). By forcibly striking its head against woodwork it makes a ticking sound, which is a call of the sexes to each other, but has been imagined by superstitious people to presage death."

Deathwatch has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets d & thwatch is misspelled as 'E'
Wrong Spelling:  d-e-thwatch 
Correct Spelling:  d-ea-thwatch 
Explore spell check of Deathwatch to spell without errors.

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