The word Indexicaly is misspelled against Indexically, an adverb meaning "In the manner of an index."
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Indexically has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings indexica & y which should not be misspelled with single 'L'
Wrong Spelling:  indexica-l-y 
Correct Spelling:  indexica-ll-y 
Find more wrongly spelled words of Indexically to spell it well.