The word Extil is misspelled against Extill, a verb meaning "To drop or distill."
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Extill has double 'll' in the end mispronounced as 'l'
Remember double 'LL' appears in the end of this word which should not be misspelled with single 'L'
Wrong Spelling:  exti-l 
Correct Spelling:  exti-ll 
Find more wrongly spelled words of Extill to spell it well.