The word Palidity is misspelled against Pallidity, a noun meaning "Pallidness; paleness."
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Pallidity has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings pa & idity which should not be misspelled with single 'L'
Wrong Spelling:  pa-l-idity 
Correct Spelling:  pa-ll-idity 
Find more wrongly spelled words of Pallidity to spell it well.