--> Polysyllabism has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings polysy & abism which should not be misspelled with single 'L'
Wrong Spelling:  polysy-l-abism 
Correct Spelling:  polysy-ll-abism 
Find more incorrect spellings of Polysyllabism to spell right way.