Weldrain or Welldrain: How To spell?

The word Weldrain is misspelled against Welldrain, a verb meaning "To drain, as land; by means of wells, or pits, which receive the water, and from which it is discharged by machinery."

Welldrain has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings we & drain which should not be misspelled with single 'L'
Wrong Spelling:  we-l-drain 
Correct Spelling:  we-ll-drain 
Find more wrongly spelled words of Welldrain to spell it well.