Misingly or Missingly: How To spell?
The word Misingly is misspelled against Missingly, an adverb meaning "With a sense of loss."
Missingly has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings mi & ingly which should not be misspelled with single 'S'
Wrong Spelling:  mi-s-ingly  Correct Spelling:  mi-ss-ingly 
Find more wrongly spelled words of Missingly to spell it well.