The word Asailer is misspelled against Assailer, a noun meaning "One who assails."
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Assailer has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings a & ailer which should not be misspelled with single 'S'
Wrong Spelling:  a-s-ailer 
Correct Spelling:  a-ss-ailer 
Find more wrongly spelled words of Assailer to spell it well.