Impalid or Impallid: How To spell?
The word Impalid is misspelled against Impallid, a verb meaning "To make pallid; to blanch."
Impallid has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings impa & id which should not be misspelled with single 'L'
Wrong Spelling:  impa-l-id  Correct Spelling:  impa-ll-id 
Find more wrongly spelled words of Impallid to spell it well.