The word Asail is misspelled against Assail, meaning "with attack violently"
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Assail has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings a & ail which should not be misspelled with single 'S'
Wrong Spelling:  a-s-ail 
Correct Spelling:  a-ss-ail 
Find more wrongly spelled words of Assail to spell it well.