Upsiting or Upsitting: How To spell?
The word Upsiting is misspelled against Upsitting, a noun meaning "A sitting up of a woman after her confinement, to receive and entertain her friends."
Upsitting has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings upsi & ing which should not be misspelled with single 'T'
Wrong Spelling:  upsi-t-ing  Correct Spelling:  upsi-tt-ing 
Find more wrongly spelled words of Upsitting to spell it well.