Abscisa or Abscissa: How To spell?
The word Abscisa is misspelled against Abscissa, a noun meaning "One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coordinate axes."
Abscissa has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings absci & a which should not be misspelled with single 'S'
Wrong Spelling:  absci-s-a  Correct Spelling:  absci-ss-a 
Find more wrongly spelled words of Abscissa to spell it well.