The word Deceitfuly is misspelled against Deceitfully, an adverb meaning "With intent to deceive."
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Deceitfully has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings deceitfu & y which should not be misspelled with single 'L'
Wrong Spelling:  deceitfu-l-y 
Correct Spelling:  deceitfu-ll-y 
Check more misspelled words of Deceitfully to spell it correct.