The word Glasily is misspelled against Glassily, an adverb meaning "So as to resemble glass."
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Glassily has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings gla & ily which should not be misspelled with single 'S'
Wrong Spelling:  gla-s-ily 
Correct Spelling:  gla-ss-ily 
Find more wrongly spelled words of Glassily to spell it well.